/*----------------------------------------------------------------------------\
|                               Tab Pane 1.02                                 |
|-----------------------------------------------------------------------------|
|                         Created by Erik Arvidsson                           |
|                  (http://webfx.eae.net/contact.html#erik)                   |
|                      For WebFX (http://webfx.eae.net/)                      |
|-----------------------------------------------------------------------------|
|                Copyright (c) 2002, 2003, 2006 Erik Arvidsson                |
|-----------------------------------------------------------------------------|
| Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| use this file except in compliance with the License.  You may obtain a copy |
| of the License at http://www.apache.org/licenses/LICENSE-2.0                |
| - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - |
| Unless  required  by  applicable law or  agreed  to  in  writing,  software |
| distributed under the License is distributed on an  "AS IS" BASIS,  WITHOUT |
| WARRANTIES OR  CONDITIONS OF ANY KIND,  either express or implied.  See the |
| License  for the  specific language  governing permissions  and limitations |
| under the License.                                                          |
|-----------------------------------------------------------------------------|
| 2002-01-?? | First working version                                          |
| 2002-02-17 | Cleaned up for 1.0 public version                              |
| 2003-02-18 | Changed from javascript uri for anchors to return false        |
| 2003-03-03 | Added dispose methods to release IE memory                     |
| 2006-05-28 | Changed license to Apache Software License 2.0.                |
|-----------------------------------------------------------------------------|
| Dependencies: *.css           a css file to define the layout               |
|-----------------------------------------------------------------------------|
| Created 2002-01-?? | All changes are in the log above. | Updated 2006-05-28 |
\----------------------------------------------------------------------------*/
// This function is used to define if the browser supports the needed
// features
function hasSupport() {
if (typeof hasSupport.support != "undefined")
return hasSupport.support;
var ie55 = /msie 5\.[56789]/i.test( navigator.userAgent );
hasSupport.support = ( typeof document.implementation != "undefined" &&
document.implementation.hasFeature( "html", "1.0" ) || ie55 )
// IE55 has a serious DOM1 bug... Patch it!
if ( ie55 ) {
document._getElementsByTagName = document.getElementsByTagName;
document.getElementsByTagName = function ( sTagName ) {
if ( sTagName == "*" )
return document.all;
else
return document._getElementsByTagName( sTagName );
};
}
return hasSupport.support;
}
///////////////////////////////////////////////////////////////////////////////////
// The constructor for tab panes
//
// el : HTMLElement		The html element used to represent the tab pane
// bUseCookie : Boolean	Optional. Default is true. Used to determine whether to us
//						persistance using cookies or not
//
function WebFXTabPane( el, bUseCookie ) {
if ( !hasSupport() || el == null ) return;
this.element = el;
this.element.tabPane = this;
this.pages = [];
this.selectedIndex = null;
this.useCookie = bUseCookie != null ? bUseCookie : true;
// add class name tag to class name
this.element.className = this.classNameTag + " " + this.element.className;
// add tab row
this.tabRow = document.createElement( "div" );
this.tabRow.className = "tab-row";
el.insertBefore( this.tabRow, el.firstChild );
var tabIndex = 0;
if ( this.useCookie ) {
tabIndex = Number( WebFXTabPane.getCookie( "webfxtab_" + this.element.id ) );
if ( isNaN( tabIndex ) )
tabIndex = 0;
}
this.selectedIndex = tabIndex;
// loop through child nodes and add them
var cs = el.childNodes;
var n;
for (var i = 0; i < cs.length; i++) {
if (cs[i].nodeType == 1 && cs[i].className == "tab-page") {
this.addTabPage( cs[i] );
}
}
}
WebFXTabPane.prototype.classNameTag = "dynamic-tab-pane-control";
WebFXTabPane.prototype.setSelectedIndex = function ( n ) {
if (this.selectedIndex != n) {
if (this.selectedIndex != null && this.pages[ this.selectedIndex ] != null )
this.pages[ this.selectedIndex ].hide();
this.selectedIndex = n;
this.pages[ this.selectedIndex ].show();
if ( this.useCookie )
WebFXTabPane.setCookie( "webfxtab_" + this.element.id, n );	// session cookie
}
};
WebFXTabPane.prototype.getSelectedIndex = function () {
return this.selectedIndex;
};
WebFXTabPane.prototype.addTabPage = function ( oElement ) {
if ( !hasSupport() ) return;
if ( oElement.tabPage == this )	// already added
return oElement.tabPage;
var n = this.pages.length;
var tp = this.pages[n] = new WebFXTabPage( oElement, this, n );
tp.tabPane = this;
// move the tab out of the box
this.tabRow.appendChild( tp.tab );
if ( n == this.selectedIndex )
tp.show();
else
tp.hide();
return tp;
};
WebFXTabPane.prototype.dispose = function () {
this.element.tabPane = null;
this.element = null;		
this.tabRow = null;
for (var i = 0; i < this.pages.length; i++) {
this.pages[i].dispose();
this.pages[i] = null;
}
this.pages = null;
};
// Cookie handling
WebFXTabPane.setCookie = function ( sName, sValue, nDays ) {
var expires = "";
if ( nDays ) {
var d = new Date();
d.setTime( d.getTime() + nDays * 24 * 60 * 60 * 1000 );
expires = "; expires=" + d.toGMTString();
}
document.cookie = sName + "=" + sValue + expires + "; path=/";
};
WebFXTabPane.getCookie = function (sName) {
var re = new RegExp( "(\;|^)[^;]*(" + sName + ")\=([^;]*)(;|$)" );
var res = re.exec( document.cookie );
return res != null ? res[3] : null;
};
WebFXTabPane.removeCookie = function ( name ) {
setCookie( name, "", -1 );
};
///////////////////////////////////////////////////////////////////////////////////
// The constructor for tab pages. This one should not be used.
// Use WebFXTabPage.addTabPage instead
//
// el : HTMLElement			The html element used to represent the tab pane
// tabPane : WebFXTabPane	The parent tab pane
// nindex :	Number			The index of the page in the parent pane page array
//
function WebFXTabPage( el, tabPane, nIndex ) {
if ( !hasSupport() || el == null ) return;
this.element = el;
this.element.tabPage = this;
this.index = nIndex;
var cs = el.childNodes;
for (var i = 0; i < cs.length; i++) {
if (cs[i].nodeType == 1 && cs[i].className == "tab") {
this.tab = cs[i];
break;
}
}
// insert a tag around content to support keyboard navigation
var a = document.createElement( "A" );
this.aElement = a;
a.href = "#";
a.onclick = function () { return false; };
while ( this.tab.hasChildNodes() )
a.appendChild( this.tab.firstChild );
this.tab.appendChild( a );
// hook up events, using DOM0
var oThis = this;
this.tab.onclick = function () { oThis.select(); };
this.tab.onmouseover = function () { WebFXTabPage.tabOver( oThis ); };
this.tab.onmouseout = function () { WebFXTabPage.tabOut( oThis ); };
}
WebFXTabPage.prototype.show = function () {
var el = this.tab;
var s = el.className + " selected";
s = s.replace(/ +/g, " ");
el.className = s;
this.element.style.display = "block";
};
WebFXTabPage.prototype.hide = function () {
var el = this.tab;
var s = el.className;
s = s.replace(/ selected/g, "");
el.className = s;
this.element.style.display = "none";
};
WebFXTabPage.prototype.select = function () {
this.tabPane.setSelectedIndex( this.index );
};
WebFXTabPage.prototype.dispose = function () {
this.aElement.onclick = null;
this.aElement = null;
this.element.tabPage = null;
this.tab.onclick = null;
this.tab.onmouseover = null;
this.tab.onmouseout = null;
this.tab = null;
this.tabPane = null;
this.element = null;
};
WebFXTabPage.tabOver = function ( tabpage ) {
var el = tabpage.tab;
var s = el.className + " hover";
s = s.replace(/ +/g, " ");
el.className = s;
};
WebFXTabPage.tabOut = function ( tabpage ) {
var el = tabpage.tab;
var s = el.className;
s = s.replace(/ hover/g, "");
el.className = s;
};
// This function initializes all uninitialized tab panes and tab pages
function setupAllTabs() {
if ( !hasSupport() ) return;
var all = document.getElementsByTagName( "*" );
var l = all.length;
var tabPaneRe = /tab\-pane/;
var tabPageRe = /tab\-page/;
var cn, el;
var parentTabPane;
for ( var i = 0; i < l; i++ ) {
el = all[i]
cn = el.className;
// no className
if ( cn == "" ) continue;
// uninitiated tab pane
if ( tabPaneRe.test( cn ) && !el.tabPane )
new WebFXTabPane( el );
// unitiated tab page wit a valid tab pane parent
else if ( tabPageRe.test( cn ) && !el.tabPage &&
tabPaneRe.test( el.parentNode.className ) ) {
el.parentNode.tabPane.addTabPage( el );			
}
}
}
function disposeAllTabs() {
if ( !hasSupport() ) return;
var all = document.getElementsByTagName( "*" );
var l = all.length;
var tabPaneRe = /tab\-pane/;
var cn, el;
var tabPanes = [];
for ( var i = 0; i < l; i++ ) {
el = all[i]
cn = el.className;
// no className
if ( cn == "" ) continue;
// tab pane
if ( tabPaneRe.test( cn ) && el.tabPane )
tabPanes[tabPanes.length] = el.tabPane;
}
for (var i = tabPanes.length - 1; i >= 0; i--) {
tabPanes[i].dispose();
tabPanes[i] = null;
}
}
// initialization hook up
// DOM2
if ( typeof window.addEventListener != "undefined" )
window.addEventListener( "load", setupAllTabs, false );
// IE 
else if ( typeof window.attachEvent != "undefined" ) {
window.attachEvent( "onload", setupAllTabs );
window.attachEvent( "onunload", disposeAllTabs );
}
else {
if ( window.onload != null ) {
var oldOnload = window.onload;
window.onload = function ( e ) {
oldOnload( e );
setupAllTabs();
};
}
else 
window.onload = setupAllTabs;
}