// Copyright (c) 2006 Sébastien Gruhier (http://xilinus.com, http://itseb.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// VERSION 0.95


var Window = Class.create();
Window.prototype = {
        // Constructor
        // Available parameters : className, title, minWidth, minHeight, maxWidth, maxHeight, width, height, top, left, bottom, right, resizable, zIndex, opacity,
        //                        hideEffect, showEffect, showEffectOptions, hideEffectOptions, effectOptions, url, draggable, closable, minimizable, maximizable, parent, onload
        initialize: function(id) {
                this.hasEffectLib = String.prototype.parseColor != null;
                this.options = Object.extend({
                  className:         "dialog",
      minWidth:          100,
      minHeight:         30,
      resizable:         true,
      closable:          true,
      minimizable:       true,
      maximizable:       false,
      draggable:         true,
      userData:          null,
      showEffect:        (this.hasEffectLib ? Effect.Appear : Element.show),
      hideEffect:        (this.hasEffectLib ? Effect.Fade : Element.hide),
      showEffectOptions: {},
      hideEffectOptions: {},
      effectOptions:     null,
      parent:            document.getElementsByTagName("body").item(0),
      title:             "&nbsp;",
      url:               null,
      onload:            Prototype.emptyFunction,
      width:             200,
      height:            300,
      opacity:           1
    }, arguments[1] || {});

          if (this.options.effectOptions) {
            Object.extend(this.options.hideEffectOptions, this.options.effectOptions);
            Object.extend(this.options.showEffectOptions, this.options.effectOptions);
          }
                if (this.options.hideEffect == Element.hide)
                  this.options.hideEffect = function(){ Element.hide(this.element); if (this.destroyOnClose) this.destroy(); }.bind(this)

                this.element = this._createWindow(id);

                // Bind event listener
    this.eventMouseDown = this._initDrag.bindAsEventListener(this);
          this.eventMouseUp   = this._endDrag.bindAsEventListener(this);
          this.eventMouseMove = this._updateDrag.bindAsEventListener(this);
          this.eventKeyPress  = this._keyPress.bindAsEventListener(this);
          this.eventOnLoad    = this._getWindowBorderSize.bindAsEventListener(this);
    this.eventMouseDownContent = this.toFront.bindAsEventListener(this);

                this.topbar = $(this.element.id + "_top");
                this.bottombar = $(this.element.id + "_bottom");
    this.content = $(this.element.id + "_content");

                Event.observe(this.topbar, "mousedown", this.eventMouseDown);
                Event.observe(this.bottombar, "mousedown", this.eventMouseDown);
                Event.observe(this.content, "mousedown", this.eventMouseDownContent);
                Event.observe(window, "load", this.eventOnLoad);

                if (this.options.draggable)  {
                        this.bottombar.addClassName("bottom_draggable");
                        this.topbar.addClassName("top_draggable");
    }

                if (this.options.resizable) {
                        this.sizer = $(this.element.id + "_sizer");
            Event.observe(this.sizer, "mousedown", this.eventMouseDown);
    }

    this.useLeft = null;
    this.useTop = null;
                if (arguments[1].left != null) {
                        this.element.setStyle({left: parseFloat(arguments[1].left) + 'px'});
                        this.useLeft = true;
                }
                if (arguments[1].right != null) {
                        this.element.setStyle({right: parseFloat(arguments[1].right) + 'px'});
                        this.useLeft = false;
                }
    if (this.useLeft == null) {
            this.element.setStyle({left: "0px"});
                        this.useLeft = true;
    }

                if (arguments[1].top != null) {
                        this.element.setStyle({top: parseFloat(arguments[1].top) + 'px'});
                        this.useTop = true;
                }
                if (arguments[1].bottom != null) {
                        this.element.setStyle({bottom: parseFloat(arguments[1].bottom) + 'px'});
                        this.useTop = false;
                }
    if (this.useTop == null) {
                        this.element.setStyle({top: "0px"});
                        this.useTop = true;
    }

    this.storedLocation = null;

                this.setOpacity(this.options.opacity);
                if (arguments[1].zIndex)
                        this.setZIndex(arguments[1].zIndex)

                this.destroyOnClose = false;

    this._getWindowBorderSize();
                this.setSize(this.options.width, this.options.height);
                this.setTitle(this.options.title)
                Windows.register(this);
  },

        // Destructor
         destroy: function() {
                Windows.notify("onDestroy", this);

          Event.stopObserving(this.topbar, "mousedown", this.eventMouseDown);
          Event.stopObserving(this.bottombar, "mousedown", this.eventMouseDown);
          Event.stopObserving(this.content, "mousedown", this.eventMouseDownContent);

                Event.stopObserving(window, "load", this.eventOnLoad);
                Event.stopObserving(this.content, "load", this.options.onload);

                if (this.sizer)
                    Event.stopObserving(this.sizer, "mousedown", this.eventMouseDown);

                if (this.options.url)
                  this.content.src = null

                 if(this.iefix)
                        Element.remove(this.iefix);

    Element.remove(this.element);
                Windows.unregister(this);
        },

        // Sets window deleagte, should have functions: "canClose(window)"
        setDelegate: function(delegate) {
                this.delegate = delegate
        },

        // Gets current window delegate
        getDelegate: function() {
                return this.delegate;
        },

        // Gets window content
        getContent: function () {
                return this.content;
        },

        // Sets the content with an element id
        setContent: function(id, autoresize, autoposition) {
                var d = null;
                var p = null;

                if (autoresize)
                        d = Element.getDimensions(id);
                if (autoposition)
                        p = Position.cumulativeOffset($(id));

                var content = this.getContent()
                content.appendChild($(id));
                $(id).show();
                if (autoresize)
                        this.setSize(d.width, d.height);
                if (autoposition)
                  this.setLocation(p[1] - this.heightN, p[0] - this.widthW);
        },

        setAjaxContent: function(url, options, showCentered, showModal) {
          this.showFunction = showCentered ? "showCenter" : "show";
          this.showModal = showModal || false;

          if (options == null)
            options = {}
          this.onComplete = options.onComplete;
          options.onComplete = this._setAjaxContent.bind(this);

          new Ajax.Request(url, options);
        },

        _setAjaxContent: function(originalRequest) {
          this.getContent().innerHTML = originalRequest.responseText;
          if (this.onComplete)
            this.onComplete(originalRequest);
          this[this.showFunction](this.showModal)
        },

        // Stores position/size in a cookie, by default named with window id
        setCookie: function(name, expires, path, domain, secure) {
                name = name || this.element.id;
                this.cookie = [name, expires, path, domain, secure];

                // Get cookie
                var value = WindowUtilities.getCookie(name)
                // If exists
                if (value) {
                        var values = value.split(',');
                        var x = values[0].split(':');
                        var y = values[1].split(':');

                        var w = parseFloat(values[2]), h = parseFloat(values[3]);
                        var mini = values[4];
                        var maxi = values[5];

                  this.setSize(w, h);
                        if (mini == "true")
                    this.doMinimize = true; // Minimize will be done at onload window event
                        else if (maxi == "true")
                          this.doMaximize = true; // Maximize will be done at onload window event

                        this.useLeft = x[0] == "l";
                        this.useTop = y[0] == "t";

                        this.element.setStyle(this.useLeft ? {left: x[1]} : {right: x[1]});
                        this.element.setStyle(this.useTop ? {top: y[1]} : {bottom: y[1]});
                }
        },

        // Gets window ID
        getId: function() {
                return this.element.id;
        },

        // Detroys itself when closing
        setDestroyOnClose: function() {
          Object.extend(this.options.hideEffectOptions, {afterFinish:  this.destroy.bind(this)});
                this.destroyOnClose = true;
        },

        // initDrag event
        _initDrag: function(event) {
    // Get pointer X,Y
          this.pointer = [Event.pointerX(event), Event.pointerY(event)];

    // Resize
                if (Event.element(event) == this.sizer) {
                        this.doResize = true;
            this.widthOrg = this.width;
            this.heightOrg = this.height;
            this.bottomOrg = parseFloat(this.element.getStyle('bottom'));
            this.rightOrg = parseFloat(this.element.getStyle('right'));
                        Windows.notify("onStartResize", this);

                }
    else {
                  this.doResize = false;

                  // Check if click on close button,
                  var closeButton = $(this.getId() + '_close');
                  if (closeButton && Position.within(closeButton, this.pointer[0], this.pointer[1]))
                          return;

                  this.toFront();

                  if (! this.options.draggable)
                    return;
                  Windows.notify("onStartMove", this);
                  }
          // Register global event to capture mouseUp and mouseMove
          Event.observe(document, "mouseup", this.eventMouseUp, false);
    Event.observe(document, "mousemove", this.eventMouseMove, false);

          // Add an invisible div to keep catching mouse event over iframes
          WindowUtilities.disableScreen('__invisible__', '__invisible__', false);

    // Stop selection while dragging
    document.body.ondrag = function () { return false; };
    document.body.onselectstart = function () { return false; };

    Event.stop(event);
  },

  // updateDrag event
        _updateDrag: function(event) {
           var pointer = [Event.pointerX(event), Event.pointerY(event)];
                var dx = pointer[0] - this.pointer[0];
                var dy = pointer[1] - this.pointer[1];

                // Resize case, update width/height
                if (this.doResize) {
                        this.setSize(this.widthOrg + dx , this.heightOrg + dy);

      dx = this.width - this.widthOrg
      dy = this.height - this.heightOrg

                  // Check if it's a right position, update it to keep upper-left corner at the same position
                        if (! this.useLeft)
                                this.element.setStyle({right: (this.rightOrg -dx) + 'px'});
                        // Check if it's a bottom position, update it to keep upper-left corner at the same position
                        if (! this.useTop)
                                this.element.setStyle({bottom: (this.bottomOrg -dy) + 'px'});
                }
                // Move case, update top/left
                else {
                  this.pointer = pointer;

                        if (this.useLeft)
                                this.element.setStyle({left: parseFloat(this.element.getStyle('left')) + dx + 'px'});
                        else
                                this.element.setStyle({right: parseFloat(this.element.getStyle('right')) - dx + 'px'});

                        if (this.useTop)
                                this.element.setStyle({top: parseFloat(this.element.getStyle('top')) + dy + 'px'});
                  else
                                this.element.setStyle({bottom: parseFloat(this.element.getStyle('bottom')) - dy + 'px'});
                }
                if (this.iefix)
                        this._fixIEOverlapping();

                this._removeStoreLocation();
    Event.stop(event);
        },

         // endDrag callback
         _endDrag: function(event) {
                // Remove temporary div over iframes
           WindowUtilities.enableScreen('__invisible__');

                if (this.doResize){
                        Windows.notify("onEndResize", this);

                }else{
                        Windows.notify("onEndMove", this);

}
                // Release event observing
                Event.stopObserving(document, "mouseup", this.eventMouseUp,false);
    Event.stopObserving(document, "mousemove", this.eventMouseMove, false);

                // Store new location/size if need be
                this._saveCookie()

    Event.stop(event);

    // Restore selection
    document.body.ondrag = null;
    document.body.onselectstart = null;
  },

        _keyPress: function(event) {
                //Dialog.cancelCallback();
        },

        // Creates HTML window code
        _createWindow: function(id) {
          var className = this.options.className;
                var win = document.createElement("div");
                win.setAttribute('id', id);
                win.className = "dialog";

                var content;
                if (this.options.url)
                        content= "<IFRAME frameborder=\"0\"name=\"" + id + "_content\"  id=\"" + id + "_content\" SRC=\"" + this.options.url + "\"> </IFRAME>";
                else
                        content ="<DIV id=\"" + id + "_content\" class=\"" +className + "_content\"> </DIV>";

                var closeDiv = this.options.closable ? "<div class='"+ className +"_close' id='"+ id +"_close' onclick='Windows.close(\""+ id +"\")'> </div>" : "";
                var minDiv = this.options.minimizable ? "<div class='"+ className + "_minimize' id='"+ id +"_minimize' onclick='Windows.minimize(\""+ id +"\")'> </div>" : "";
                var maxDiv = this.options.maximizable ? "<div class='"+ className + "_maximize' id='"+ id +"_maximize' onclick='Windows.maximize(\""+ id +"\")'> </div>" : "";
                var seAttributes = this.options.resizable ? "class='" + className + "_sizer' id='" + id + "_sizer'" : "class='"  + className + "_se'";

    win.innerHTML = closeDiv + minDiv + maxDiv + "\
      <table id='"+ id +"_row1' class=\"top table_window\">\
        <tr>\
          <td class='"+ className +"_nw'>&nbsp;</td>\
          <td class='"+ className +"_n'><div id='"+ id +"_top' class='"+ className +"_title title_window'>"+ this.options.title +"</div></td>\
          <td class='"+ className +"_ne'>&nbsp;</td>\
        </tr>\
      </table>\
      <table id='"+ id +"_row2' class=\"mid table_window\">\
        <tr>\
          <td class='"+ className +"_w'></td>\
            <td id='"+ id +"_table_content' class='"+ className +"_content' valign='top'>"+ content +"</td>\
          <td class='"+ className +"_e'></td>\
        </tr>\
      </table>\
        <table id='"+ id +"_row3' class=\"bot table_window\">\
        <tr>\
          <td class='"+ className +"_sw'>&nbsp;</td>\
            <td class='"+ className +"_s'><div id='"+ id +"_bottom' class='status_bar'>&nbsp;</div></td>\
            <td " + seAttributes + ">&nbsp;</td>\
        </tr>\
      </table>\
    ";

                Element.hide(win);
                this.options.parent.insertBefore(win, this.options.parent.firstChild);
                Event.observe($(id + "_content"), "load", this.options.onload);
                return win;
        },

        // Sets window location
        setLocation: function(top, left) {
          if (top < 0)
            top = 0;
    if (left < 0)
      left= 0
                this.element.setStyle({top: top + 'px'});
                this.element.setStyle({left: left + 'px'});
                this.useLeft = true;
                this.useTop = true;
        },

        // Gets window size
        getSize: function() {
          return {width: width, height: height};
        },

        // Sets window size
        setSize: function(width, height) {
          width = parseFloat(width);
          height = parseFloat(height);

                // Check min and max size
                if (width < this.options.minWidth)
                        width = this.options.minWidth;

                if (height < this.options.minHeight)
                        height = this.options.minHeight;

                if (this.options. maxHeight && height > this.options. maxHeight)
                        height = this.options. maxHeight;

                if (this.options. maxWidth && width > this.options. maxWidth)
                        width = this.options. maxWidth;

          this.width = width;
                this.height = height;
                this.element.setStyle({width: width + this.widthW + this.widthE + "px"})
                this.element.setStyle({height: height  + this.heightN + this.heightS + "px"})

                // Update content height
                var content = $(this.element.id + '_content')
                content.setStyle({height: height  + 'px'});
                content.setStyle({width: width  + 'px'});

        },

        // Brings window to front
        toFront: function() {
    this.setZIndex(Windows.maxZIndex + 20);
        },

        // Displays window modal state or not
        show: function(modal) {
                if (modal) {
                        WindowUtilities.disableScreen(this.options.className);
                        this.modal = true;
                        this.setZIndex(Windows.maxZIndex + 20);
                        Windows.unsetOverflow(this);
                        Event.observe(document, "keypress", this.eventKeyPress);
                }

                // To restore overflow if need be
                if (this.oldStyle)
                  this.getContent().setStyle({overflow: this.oldStyle});

                this.setSize(this.width, this.height);
                if (this.options.showEffect != Element.show && this.options.showEffectOptions )
                        this.options.showEffect(this.element, this.options.showEffectOptions);
                else
                        this.options.showEffect(this.element);

    this._checkIEOverlapping();
        },

        // Displays window modal state or not at the center of the page
        showCenter: function(modal) {
                this.setSize(this.width, this.height);
                this._center();

                this.show(modal);
        },

        _center: function() {
                var windowScroll = WindowUtilities.getWindowScroll();
                var pageSize = WindowUtilities.getPageSize();

    this.setLocation(windowScroll.top + (pageSize.windowHeight - (this.height + this.heightN + this.heightS))/2,
                     windowScroll.left + (pageSize.windowWidth - (this.width + this.widthW + this.widthE))/2);
    this.toFront();
        },

        // Hides window
        hide: function() {
                if (this.modal) {
                        WindowUtilities.enableScreen();
                        Windows.resetOverflow();
                        Event.stopObserving(document, "keypress", this.eventKeyPress);

                }
                // To avoid bug on scrolling bar
          this.oldStyle = this.getContent().getStyle('overflow');
                this.getContent().setStyle({overflow: "hidden"});

                this.options.hideEffect(this.element, this.options.hideEffectOptions);

                 if(this.iefix)
                        this.iefix.hide();
        },

  minimize: function() {
    var r2 = $(this.getId() + "_row2");
    var dh = r2.getDimensions().height;

    if (r2.visible()) {
      var h  = this.element.getHeight() - dh
      r2.hide()
// nach minimieren des Fensters DIV 'fade' verstecken
                        if($('fade')) {
                           //$('fade').style.height ='' + (10) + 'px';
                              $('fade').style.visibility="hidden" ;

                        }
//======================================================================
                  this.element.setStyle({height: h + "px"})
                  if (! this.useTop) {
                    var bottom = parseFloat(this.element.getStyle('bottom'));
                          this.element.setStyle({bottom: (bottom + dh) + 'px'});
                  }
    }
    else {
      var h  = this.element.getHeight() + dh;
      this.element.setStyle({height: h + "px"})
                  if (! this.useTop) {
                    var bottom = parseFloat(this.element.getStyle('bottom'));
                          this.element.setStyle({bottom: (bottom - dh) + 'px'});
                  }
      r2.show();
// nach maximieren des Fensters DIV 'fade' anzeigen
$('fade').style.visibility="visible" ;
      this.toFront();
    }
    Windows.notify("onMinimize", this);

    // Store new location/size if need be
                this._saveCookie()
  },

  maximize: function() {

    if (this.storedLocation != null) {
      this._restoreLocation();
      if(this.iefix)
                          this.iefix.hide();
    }
    else {
      this._storeLocation();
      Windows.unsetOverflow(this);

      var windowScroll = WindowUtilities.getWindowScroll();
                  var pageSize = WindowUtilities.getPageSize();

                        this.element.setStyle(this.useLeft ? {left: windowScroll.left} : {right: windowScroll.left});
                  this.element.setStyle(this.useTop ? {top: windowScroll.top} : {bottom: windowScroll.top});

      this.setSize(pageSize.windowWidth - this.widthW - this.widthE, pageSize.windowHeight - this.heightN - this.heightS)
      this.toFront();
      if (this.iefix)
                          this._fixIEOverlapping();
    }
                Windows.notify("onMaximize", this);

                // Store new location/size if need be
                this._saveCookie()
  },

  isMinimized: function() {
    var r2 = $(this.getId() + "_row2");
    return !r2.visible();
  },

  isMaximized: function() {
        return (this.storedLocation != null);

  },

        setOpacity: function(opacity) {
                if (Element.setOpacity)
                        Element.setOpacity(this.element, opacity);
        },

        setZIndex: function(zindex) {
                this.element.setStyle({zIndex: zindex});
                Windows.updateZindex(zindex, this);
        },

  setTitle: function(newTitle) {
          if (!newTitle || newTitle == "")
            newTitle = "&nbsp;";

          Element.update(this.element.id + '_top', newTitle);
  },

        setStatusBar: function(element) {
                var statusBar = $(this.getId() + "_bottom");

    if (typeof(element) == "object") {
      if (this.bottombar.firstChild)
        this.bottombar.replaceChild(element, this.bottombar.firstChild);
      else
        this.bottombar.appendChild(element);
    }
    else
                  this.bottombar.innerHTML = element;
        },

        _checkIEOverlapping: function() {
    if(!this.iefix && (navigator.appVersion.indexOf('MSIE')>0) && (navigator.userAgent.indexOf('Opera')<0) && (this.element.getStyle('position')=='absolute')) {
        new Insertion.After(this.element.id, '<iframe id="' + this.element.id + '_iefix" '+ 'style="display:none;position:absolute;filter:progid:DXImageTransform.Microsoft.Alpha(opacity=0);" ' + 'src="javascript:false;" frameborder="0" scrolling="no"></iframe>');
        this.iefix = $(this.element.id+'_iefix');
    }
    if(this.iefix)
                        setTimeout(this._fixIEOverlapping.bind(this), 50);
        },

        _fixIEOverlapping: function() {
            Position.clone(this.element, this.iefix);
            this.iefix.style.zIndex = this.element.style.zIndex - 1;
            this.iefix.show();
        },

        _getWindowBorderSize: function(event) {
    // Hack to get real window border size!!
    var div = this._createHiddenDiv(this.options.className + "_n")
                this.heightN = Element.getDimensions(div).height;
                div.parentNode.removeChild(div)

    var div = this._createHiddenDiv(this.options.className + "_s")
                this.heightS = Element.getDimensions(div).height;
                div.parentNode.removeChild(div)

    var div = this._createHiddenDiv(this.options.className + "_e")
                this.widthE = Element.getDimensions(div).width;
                div.parentNode.removeChild(div)

    var div = this._createHiddenDiv(this.options.className + "_w")
                this.widthW = Element.getDimensions(div).width;
                div.parentNode.removeChild(div);
                // Safari size fix
                if (/Konqueror|Safari|KHTML/.test(navigator.userAgent))
                  this.setSize(this.width, this.height);
                if (this.doMaximize)
                  this.maximize();
                if (this.doMinimize)
                  this.minimize();
  },

  _createHiddenDiv: function(className) {
    var objBody = document.getElementsByTagName("body").item(0);
    var win = document.createElement("div");
                win.setAttribute('id', this.element.id+ "_tmp");
                win.className = className;
                win.style.display = 'none'
                win.innerHTML = ''
                objBody.insertBefore(win, objBody.firstChild)
                return win
  },

        _storeLocation: function() {
          if (this.storedLocation == null) {
            this.storedLocation = {useTop: this.useTop, useLeft: this.useLeft,
                                   top: this.element.getStyle('top'), bottom: this.element.getStyle('bottom'),
                                   left: this.element.getStyle('left'), right: this.element.getStyle('right'),
                                   width: this.width, height: this.height };
          }
        },

  _restoreLocation: function() {
    if (this.storedLocation != null) {
      this.useLeft = this.storedLocation.useLeft;
      this.useTop = this.storedLocation.useTop;

      this.element.setStyle(this.useLeft ? {left: this.storedLocation.left} : {right: this.storedLocation.right});
                  this.element.setStyle(this.useTop ? {top: this.storedLocation.top} : {bottom: this.storedLocation.bottom});
                  this.setSize(this.storedLocation.width, this.storedLocation.height);

                  Windows.resetOverflow();
                  this._removeStoreLocation();
    }
  },

  _removeStoreLocation: function() {
    this.storedLocation = null;
  },

  _saveCookie: function() {
    if (this.cookie) {
                  var value = "";
                  if (this.useLeft)
                          value += "l:" +  (this.storedLocation ? this.storedLocation.left : this.element.getStyle('left'))
                  else
                          value += "r:" + (this.storedLocation ? this.storedLocation.right : this.element.getStyle('right'))
                  if (this.useTop)
                          value += ",t:" + (this.storedLocation ? this.storedLocation.top : this.element.getStyle('top'))
                  else
                          value += ",b:" + (this.storedLocation ? this.storedLocation.bottom :this.element.getStyle('bottom'))

                  value += "," + (this.storedLocation ? this.storedLocation.width : this.width);
                  value += "," + (this.storedLocation ? this.storedLocation.height : this.height);
                  value += "," + this.isMinimized();
                  value += "," + this.isMaximized();
                  WindowUtilities.setCookie(value, this.cookie)
    }
  }
};

// Windows containers, register all page windows
var Windows = {
  windows: [],
  observers: [],
  focusedWindow: null,
  maxZIndex: 0,

  addObserver: function(observer) {
    this.removeObserver(observer);
    this.observers.push(observer);
  },

  removeObserver: function(observer) {
    this.observers = this.observers.reject( function(o) { return o==observer });
  },

  notify: function(eventName, win) {  //  onStartResize(), onEndResize(), onStartMove(), onEndMove(), onClose(), onDestroy(), onMinimize(), onMaximize()
    this.observers.each( function(o) {if(o[eventName]) o[eventName](eventName, win);});
  },

  // Gets window from its id
  getWindow: function(id) {
          return this.windows.detect(function(d) { return d.getId() ==id });
  },

  // Gets the last focused window
  getFocusedWindow: function() {
          return this.focusedWindow;
  },

  // Registers a new window (called by Windows constructor)
  register: function(win) {
    this.windows.push(win);
  },

  // Unregisters a window (called by Windows destructor)
  unregister: function(win) {
    this.windows = this.windows.reject(function(d) { return d==win });
  },

  // Closes a window with its id
  close: function(id) {
          var win = this.getWindow(id);
          // Asks delegate if exists
    if (win) {
                  if (win.getDelegate() && ! win.getDelegate().canClose(win))
                          return;

                          this.notify("onClose", win);
                          win.hide();
 // nach schliessen des Fensters DIV 'uhr' wieder anzeigen
                       if($('banner')) {
     //                   $('fade').style.height ='' + (10) + 'px';
   var ID=window.setTimeout("$('banner').style.visibility='visible'",500);

                      }
// nach schliessen des Fensters DIV 'h' wieder verkleinern und verstecken
       if($('h')){WindowUtilities.enableScreen("h");}   //Zeile 1130
//======================================================================
          }
  },

  // Closes all windows
  closeAll: function() {
    this.windows.each( function(w) {Windows.close(w.getId())} );
   },

  // Minimizes a window with its id
  minimize: function(id) {
          var win = this.getWindow(id)
          if (win)
            win.minimize();

  },

  // Maximizes a window with its id
  maximize: function(id) {
          var win = this.getWindow(id)
          if (win)
            win.maximize();
  },

  unsetOverflow: function(except) {
          this.windows.each(function(d) { d.oldOverflow = d.getContent().getStyle("overflow") || "auto" ; d.getContent().setStyle({overflow: "hidden"}) });
          if (except && except.oldOverflow)
                  except.getContent().setStyle({overflow: except.oldOverflow});
  },

  resetOverflow: function() {
          this.windows.each(function(d) { if (d.oldOverflow) d.getContent().setStyle({overflow: d.oldOverflow}) });

  },

  updateZindex: function(zindex, win) {
          if (zindex > this.maxZIndex)
                  this.maxZIndex = zindex;
    this.focusedWindow = win;

  }
};

var Dialog = {
  dialogId: null,
         win: null,
  onCompleteFunc: null,
  callFunc: null,
  parameters: null,

        confirm: function(content, parameters) {
          // Get Ajax return before
          if (typeof content != "string") {
            Dialog._runAjaxRequest(content, parameters, Dialog.confirm);
            return
          }

          parameters = parameters || {};
                var okLabel = parameters.okLabel ? parameters.okLabel : "Ok";
                var cancelLabel = parameters.cancelLabel ? parameters.cancelLabel : "Cancel";

                var windowParam = parameters.windowParameters || {};
                windowParam.className = windowParam.className || "alert";

    okButtonClass = "class ='" + (parameters.buttonClass ? parameters.buttonClass + " " : "") + " ok_button'"
    cancelButtonClass = "class ='" + (parameters.buttonClass ? parameters.buttonClass + " " : "") + " cancel_button'"
                var content = "\
                        <div class='" + windowParam.className + "_message'>" + content  + "</div>\
<div class='" + windowParam.className + "_buttons'>\
<input type='button' value='" + okLabel + "' onclick='Dialog.okCallback()'" + okButtonClass + "/>\
                                        <input type='button' value='" + cancelLabel + "' onclick='Dialog.cancelCallback()' " + cancelButtonClass + "/>\
                                </div>\
                ";
          this._openDialog(content, parameters)
          return this.win;
        },
/**************************************************************/
        alert: function(content, parameters) {
          // Get Ajax return before
          if (typeof content != "string") {
            Dialog._runAjaxRequest(content, parameters, Dialog.alert);
            return
          }

          parameters = parameters || {};
                var okLabel = parameters.okLabel ? parameters.okLabel : "Ok";

                var windowParam = parameters.windowParameters || {};
                windowParam.className = windowParam.className || "alert";

okButtonClass = "class ='" +
(parameters.buttonClass ? parameters.buttonClass + " " : "") + " ok_button'";
var content = "\<div class='" + windowParam.className + "_message'>" + content  + "</div>\<div class='" + windowParam.className + "_buttons'>\<input type='button' value='" + okLabel + "' onclick='Dialog.okCallback()'" + okButtonClass + "/>\</div>";
                return this._openDialog(content, parameters)
        },
/**************************************************************/
        info: function(content, parameters) {
          // Get Ajax return before
          if (typeof content != "string") {
            Dialog._runAjaxRequest(content, parameters, Dialog.info);
            return
          }

          parameters = parameters || {};
          parameters.windowParameters = parameters.windowParameters || {};

                var className = parameters.windowParameters.className || "alert";

                var content = "<div id='modal_dialog_message' class='" + className + "_message'>" + content  + "</div>";
                if (parameters.showProgress)
                  content += "<div id='modal_dialog_progress' class='" + className + "_progress'>        </div>";

                parameters.windowParameters.ok = null;
                parameters.windowParameters.cancel = null;
    parameters.windowParameters.className = className;

                return this._openDialog(content, parameters)
        },

        setInfoMessage: function(message) {
                $('modal_dialog_message').update(message);
        },

        closeInfo: function() {
                Windows.close(this.dialogId);
        },

        _openDialog: function(content, parameters) {
                // remove old dialog
                if (this.win)
                        this.win.destroy();

    if (! parameters.windowParameters.height && ! parameters.windowParameters.width) {
      parameters.windowParameters.width = WindowUtilities.getPageSize().pageWidth / 2;
    }
    this.dialogId = parameters.id ? parameters.id : 'modal_dialog'

    // compute height or width if need be
    if (! parameters.windowParameters.height || ! parameters.windowParameters.width) {
                  var objBody = document.getElementsByTagName("body").item(0);
                  var tmpObj = document.createElement("div");
                  tmpObj.setAttribute('id', this.dialogId);

                  if (parameters.windowParameters.height)
                    tmpObj.style.height = parameters.windowParameters.height + "px"
                  else
                    tmpObj.style.width = parameters.windowParameters.width + "px"

                  tmpObj.style.position = 'absolute';
                  tmpObj.style.top = '0';
                  tmpObj.style.left = '0';
                   tmpObj.style.display = 'none';

      tmpObj.innerHTML = content
                  objBody.insertBefore(tmpObj, objBody.firstChild);
                  if (parameters.windowParameters.height)
                    parameters.windowParameters.width = $(this.dialogId).getDimensions().width + 5
                  else
                    parameters.windowParameters.height = $(this.dialogId).getDimensions().height + 5
                  objBody.removeChild(tmpObj)
    }
                var windowParam = parameters && parameters.windowParameters ? parameters.windowParameters : {};
                windowParam.resizable = windowParam.resizable || false;

                windowParam.effectOptions = windowParam.effectOptions || {duration: 1};
    windowParam.minimizable = false;
    windowParam.maximizable = false;
    windowParam.closable = true;
                this.win = new Window(this.dialogId, windowParam);
                this.win.getContent().innerHTML = content;
          this.win.showCenter(true);

                this.win.cancelCallback = parameters.cancel;
                this.win.okCallback = parameters.ok;

                if (! this.eventResize)
                  this.eventResize = this.recenter.bindAsEventListener(this);

          Event.observe(window, "resize", this.eventResize);
          Event.observe(window, "scroll", this.eventResize);

                return this.win;
        },

        _getAjaxContent: function(originalRequest)  {
      Dialog.callFunc(originalRequest.responseText, Dialog.parameters)
  },

  _runAjaxRequest: function(message, parameters, callFunc) {
    if (message.options == null)
            message.options ={}
          Dialog.onCompleteFunc = message.options.onComplete;
    Dialog.parameters = parameters;
    Dialog.callFunc = callFunc;

          message.options.onComplete = Dialog._getAjaxContent;
    new Ajax.Request(message.url, message.options);
  },

        okCallback: function() {
                Event.stopObserving(window, "resize", this.eventResize);
                Event.stopObserving(window, "scroll", this.eventResize);

                if (!this.win.okCallback || this.win.okCallback(this.win))
            this.win.hide();
return true;
        },

        cancelCallback: function() {
                this.win.hide();
                Event.stopObserving(window, "resize", this.eventResize);
                Event.stopObserving(window, "scroll", this.eventResize);

                if (this.win.cancelCallback)
                        this.win.cancelCallback(this.win);
return false;
        },

        recenter: function(event) {
                var pageSize = WindowUtilities.getPageSize();
                // set height of Overlay to take up whole page and show
                if ($('overlay_modal')) {
                  $('overlay_modal').style.height = (pageSize.pageHeight + 'px');
                  $('overlay_modal').style.width = (pageSize.pageWidth + 'px');
    }
                this.win._center();
        }
}
/*
        Based on Lightbox JS: Fullsize Image Overlays
        by Lokesh Dhakar - http://www.huddletogether.com

        For more information on this script, visit:
        http://huddletogether.com/projects/lightbox/

        Licensed under the Creative Commons Attribution 2.5 License - http://creativecommons.org/licenses/by/2.5/
        (basically, do anything you want, just leave my name and link)
*/

var isIE = navigator.appVersion.match(/MSIE/) == "MSIE";

var WindowUtilities = {
  // From script.aculo.us
  getWindowScroll: function() {
    var w = window;
      var T, L, W, H;
      with (w.document) {
        if (w.document.documentElement && documentElement.scrollTop) {
          T = documentElement.scrollTop;
          L = documentElement.scrollLeft;
        } else if (w.document.body) {
          T = body.scrollTop;
          L = body.scrollLeft;
        }
        if (w.innerWidth) {
          W = w.innerWidth;
          H = w.innerHeight;
        } else if (w.document.documentElement && documentElement.clientWidth) {
          W = documentElement.clientWidth;
          H = documentElement.clientHeight;
        } else {
          W = body.offsetWidth;
          H = body.offsetHeight
        }
      }
      return { top: T, left: L, width: W, height: H };

  },
  //
  // getPageSize()
  // Returns array with page width, height and window width, height
  // Core code from - quirksmode.org
  // Edit for Firefox by pHaez
  //
  getPageSize: function(){
          var xScroll, yScroll;

          if (window.innerHeight && window.scrollMaxY) {
                  xScroll = document.body.scrollWidth;
                  yScroll = window.innerHeight + window.scrollMaxY;
          } else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
                  xScroll = document.body.scrollWidth;
                  yScroll = document.body.scrollHeight;
          } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
                  xScroll = document.body.offsetWidth;
                  yScroll = document.body.offsetHeight;
          }

          var windowWidth, windowHeight;

          if (self.innerHeight) {        // all except Explorer
                  windowWidth = self.innerWidth;
                  windowHeight = self.innerHeight;
          } else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
                  windowWidth = document.documentElement.clientWidth;
                  windowHeight = document.documentElement.clientHeight;
          } else if (document.body) { // other Explorers
                  windowWidth = document.body.clientWidth;
                  windowHeight = document.body.clientHeight;
          }
          var pageHeight, pageWidth;

          // for small pages with total height less then height of the viewport
          if(yScroll < windowHeight){
                  pageHeight = windowHeight;
          } else {
                  pageHeight = yScroll;
          }

          // for small pages with total width less then width of the viewport
          if(xScroll < windowWidth){
                  pageWidth = windowWidth;
          } else {
                  pageWidth = xScroll;
          }

          return {pageWidth: pageWidth ,pageHeight: pageHeight , windowWidth: windowWidth, windowHeight: windowHeight};
  },

         disableScreen: function(className, id, hideSelect) {
           id = id || 'overlay_modal'
           hideSelect = hideSelect || true
                WindowUtilities.initLightbox(id, className);
                var objBody = document.getElementsByTagName("body").item(0);

                // prep objects
                 var objOverlay = $(id);

                var pageSize = WindowUtilities.getPageSize();

                // Hide select boxes as they will 'peek' through the image in IE
                if (hideSelect && isIE) {
      $$('select').each(function(element) {element.style.visibility = "hidden"});
            $$('#'+id+' select').each(function(element) {element.style.visibility = "visible"});
                }

                // set height of Overlay to take up whole page and show
                objOverlay.style.height = (pageSize.pageHeight + 'px');
                objOverlay.style.width = (pageSize.windowWidth + 'px');
                objOverlay.style.display = 'block';
        },

         enableScreen: function(id) {
           id = id || 'overlay_modal'
                 var objOverlay =  $(id);
                if (objOverlay) {
                        // hide lightbox and overlay
                        objOverlay.style.display = 'none';

                        // make select boxes visible
                        if (isIE) {
        $$('select').each(function(element) {element.style.visibility = "visible"});
                        }
                        objOverlay.parentNode.removeChild(objOverlay);
                }
        },

        // initLightbox()
        // Function runs on window load, going through link tags looking for rel="lightbox".
        // These links receive onclick events that enable the lightbox display for their targets.
        // The function also inserts html markup at the top of the page which will be used as a
        // container for the overlay pattern and the inline image.
        initLightbox: function(id, className) {
                // Already done, just update zIndex
                if ($(id)) {
                        Element.setStyle(id, {zIndex: Windows.maxZIndex + 10});
                }
                // create overlay div and hardcode some functional styles (aesthetic styles are in CSS file)
                else {
                        var objBody = document.getElementsByTagName("body").item(0);
                        var objOverlay = document.createElement("div");
                        objOverlay.setAttribute('id', id);
                        objOverlay.className = "overlay_" + className
                        objOverlay.style.display = 'none';
                        objOverlay.style.position = 'absolute';
                        objOverlay.style.top = '0';
                        objOverlay.style.left = '0';
                        objOverlay.style.zIndex = Windows.maxZIndex + 10;
                         objOverlay.style.width = '100%';
                         objOverlay.style.height = '100%';
                        objBody.insertBefore(objOverlay, objBody.firstChild);
                }
        },

        setCookie: function(value, parameters) {
    document.cookie= parameters[0] + "=" + escape(value) +
      ((parameters[1]) ? "; expires=" + parameters[1].toGMTString() : "") +
      ((parameters[2]) ? "; path=" + parameters[2] : "") +
      ((parameters[3]) ? "; domain=" + parameters[3] : "") +
      ((parameters[4]) ? "; secure" : "");
  },

  getCookie: function(name) {
    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);
    if (begin == -1) {
      begin = dc.indexOf(prefix);
      if (begin != 0) return null;
    } else {
      begin += 2;
    }
    var end = document.cookie.indexOf(";", begin);
    if (end == -1) {
      end = dc.length;
    }
    return unescape(dc.substring(begin + prefix.length, end));
  }
}