/*******************************************************************************
*  ruthsarian_utilities.js : 2005.09.01
* -----------------------------------------------------------------------------
*  A group of useful JavaScript utilities that can aid in the development
*  of webpages.
*******************************************************************************/

/* event_attach() takes care of attaching event handlers (functions) to events. 
 * this simplifies the process of attaching multiple handlers to a single event
 *
 * NOTE: the onload stack is executed in a LIFO manner to mimic 
 *       IE's window.attachEvent function. However, Opera also has its own
 *       window.attachEvent function which executes the onload stack in a 
 *       FIFO manner. FIFO is better, but IE has a larger user base, so
 *       LIFO is the way we go.
 */
function event_attach( event , func )
{
	if ( window.attachEvent )
	{
		window.attachEvent( event , func );
	}
	else
	{
		if ( ( typeof( func ) ).toLowerCase() != 'function' )
		{
			return;
		}
		if ( ( typeof( document.event_handlers ) ).toLowerCase() == 'undefined' )
		{
			document.event_handlers = new Array();
		}
		if ( ( typeof( document.event_handlers[ event ] ) ).toLowerCase() == 'undefined' )
		{
			document.event_handlers[ event ] = new Array();
		}
		if ( ( typeof( eval( 'window.' + event ) ) ).toLowerCase() != 'function' )
		{
			eval( 'window.' + event + ' = function () { if ( ( typeof( document.event_handlers[ \'' + event + '\' ] ) ).toLowerCase() != \'undefined\' ) { for ( i = document.event_handlers[ \'' + event + '\' ].length - 1 ; i >= 0  ; i-- ) { document.event_handlers[ \'' + event + '\' ][ i ](); } } } ' );
		}
		document.event_handlers[ event ][ document.event_handlers[ event ].length ] = func;
	}
}

/* Browser Detect  v2.1.6
 * documentation: http://www.dithered.com/javascript/browser_detect/index.html
 * license: http://creativecommons.org/licenses/by/1.0/
 * code by Chris Nott (chris[at]dithered[dot]com)
 *
 * modified to include Dreamcast
 */
function browser_detect() 
{
	var ua			= navigator.userAgent.toLowerCase(); 
	this.isGecko		= (ua.indexOf('gecko') != -1 && ua.indexOf('safari') == -1);
	this.isAppleWebKit	= (ua.indexOf('applewebkit') != -1);
	this.isKonqueror	= (ua.indexOf('konqueror') != -1); 
	this.isSafari		= (ua.indexOf('safari') != - 1);
	this.isOmniweb		= (ua.indexOf('omniweb') != - 1);
	this.isDreamcast	= (ua.indexOf("dreamcast") != -1);
	this.isOpera		= (ua.indexOf('opera') != -1); 
	this.isIcab		= (ua.indexOf('icab') != -1); 
	this.isAol		= (ua.indexOf('aol') != -1); 
	this.isIE		= (ua.indexOf('msie') != -1 && !this.isOpera && (ua.indexOf('webtv') == -1)); 
	this.isMozilla		= (this.isGecko && ua.indexOf('gecko/') + 14 == ua.length);
	this.isFirebird		= (ua.indexOf('firebird/') != -1);
	this.isNS		= ((this.isGecko) ? (ua.indexOf('netscape') != -1) : ((ua.indexOf('mozilla') != -1) && !this.isOpera && !this.isSafari && (ua.indexOf('spoofer') == -1) && (ua.indexOf('compatible') == -1) && (ua.indexOf('webtv') == -1) && (ua.indexOf('hotjava') == -1)));
	this.isIECompatible	= ((ua.indexOf('msie') != -1) && !this.isIE);
	this.isNSCompatible	= ((ua.indexOf('mozilla') != -1) && !this.isNS && !this.isMozilla);
	this.geckoVersion	= ((this.isGecko) ? ua.substring((ua.lastIndexOf('gecko/') + 6), (ua.lastIndexOf('gecko/') + 14)) : -1);
	this.equivalentMozilla	= ((this.isGecko) ? parseFloat(ua.substring(ua.indexOf('rv:') + 3)) : -1);
	this.appleWebKitVersion	= ((this.isAppleWebKit) ? parseFloat(ua.substring(ua.indexOf('applewebkit/') + 12)) : -1);
	this.versionMinor	= parseFloat(navigator.appVersion); 
	if (this.isGecko && !this.isMozilla) {
		this.versionMinor = parseFloat(ua.substring(ua.indexOf('/', ua.indexOf('gecko/') + 6) + 1));
	}
	else if (this.isMozilla) {
		this.versionMinor = parseFloat(ua.substring(ua.indexOf('rv:') + 3));
	}
	else if (this.isIE && this.versionMinor >= 4) {
		this.versionMinor = parseFloat(ua.substring(ua.indexOf('msie ') + 5));
	}
	else if (this.isKonqueror) {
		this.versionMinor = parseFloat(ua.substring(ua.indexOf('konqueror/') + 10));
	}
	else if (this.isSafari) {
		this.versionMinor = parseFloat(ua.substring(ua.lastIndexOf('safari/') + 7));
	}
	else if (this.isOmniweb) {
		this.versionMinor = parseFloat(ua.substring(ua.lastIndexOf('omniweb/') + 8));
	}
	else if (this.isOpera) {
		this.versionMinor = parseFloat(ua.substring(ua.indexOf('opera') + 6));
	}
	else if (this.isIcab) {
		this.versionMinor = parseFloat(ua.substring(ua.indexOf('icab') + 5));
	}
	this.versionMajor	= parseInt(this.versionMinor); 
	this.isDOM1		= (document.getElementById);
	this.isDOM2Event	= (document.addEventListener && document.removeEventListener);
	this.mode		= document.compatMode ? document.compatMode : 'BackCompat';
	this.isWin		= (ua.indexOf('win') != -1);
	this.isWin32		= (this.isWin && (ua.indexOf('95') != -1 || ua.indexOf('98') != -1 || ua.indexOf('nt') != -1 || ua.indexOf('win32') != -1 || ua.indexOf('32bit') != -1 || ua.indexOf('xp') != -1));
	this.isMac		= (ua.indexOf('mac') != -1);
	this.isUnix		= (ua.indexOf('unix') != -1 || ua.indexOf('sunos') != -1 || ua.indexOf('bsd') != -1 || ua.indexOf('x11') != -1)
	this.isLinux		= (ua.indexOf('linux') != -1);
	this.isNS4x		= (this.isNS && this.versionMajor == 4);
	this.isNS40x		= (this.isNS4x && this.versionMinor < 4.5);
	this.isNS47x		= (this.isNS4x && this.versionMinor >= 4.7);
	this.isNS4up		= (this.isNS && this.versionMinor >= 4);
	this.isNS6x		= (this.isNS && this.versionMajor == 6);
	this.isNS6up		= (this.isNS && this.versionMajor >= 6);
	this.isNS7x		= (this.isNS && this.versionMajor == 7);
	this.isNS7up		= (this.isNS && this.versionMajor >= 7);
	this.isIE4x		= (this.isIE && this.versionMajor == 4);
	this.isIE4up		= (this.isIE && this.versionMajor >= 4);
	this.isIE5x		= (this.isIE && this.versionMajor == 5);
	this.isIE55		= (this.isIE && this.versionMinor == 5.5);
	this.isIE5up		= (this.isIE && this.versionMajor >= 5);
	this.isIE6x		= (this.isIE && this.versionMajor == 6);
	this.isIE6up		= (this.isIE && this.versionMajor >= 6);
	this.isIE4xMac		= (this.isIE4x && this.isMac);
}

/* Opacity Displayer, Version 1.0 - http://old.alistapart.com/stories/pngopacity/
 * Copyright Michael Lovitt, 6/2002.
 */
function opacity( strId , strPath , intWidth , intHeight , strClass , strAlt )
{	
	if ( document.pngAlpha )
	{
		document.write( '<div style="height:'+intHeight+'px;width:'+intWidth+'px;filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src=\''+strPath+'.png\', sizingMethod=\'scale\')" id="'+strId+'" class="'+strClass+'"></div>' );
	}
	else if ( document.pngNormal )
	{
		document.write( '<img src="'+strPath+'.png" width="'+intWidth+'" height="'+intHeight+'" name="'+strId+'" border="0" class="'+strClass+'" alt="'+strAlt+'" />' );
	}
	else if ( document.layers )
	{
		return( '<img src="'+strPath+'.gif" width="'+intWidth+'" height="'+intHeight+'" name="'+strId+'" border="0" class="'+strClass+'" alt="'+strAlt+'" />' );
	}
	else
	{
		document.write( '<img src="'+strPath+'.gif" width="'+intWidth+'" height="'+intHeight+'" name="'+strId+'" border="0" class="'+strClass+'" alt="'+strAlt+'" />' );
	}
	return( '' );
}
function opacity_init()
{
	var browser = new browser_detect();
	document.pngAlpha = false;
	document.pngNormal = false;
	document.strExt = ".gif";

	if ( ( browser.isIE55 || browser.isIE6up ) && browser.isWin32 )
	{
		document.pngAlpha = true;
		document.strExt = ".png";
	}
	else if ( 
			( browser.isGecko ) || 
			( browser.isIE5up && browser.isMac ) || 
			( browser.isOpera && browser.isWin && browser.versionMajor >= 6 ) || 
			( browser.isOpera && browser.isUnix && browser.versionMajor >= 6 ) || 
			( browser.isOpera && browser.isMac && browser.versionMajor >= 5 ) || 
			( browser.isOmniweb && browser.versionMinor >= 3.1 ) || 
			( browser.isIcab && browser.versionMinor >= 1.9 ) || 
			( browser.isWebtv ) || 
			( browser.isDreamcast ) 
		)
	{
		document.pngNormal = true;
		document.strExt = ".png";
	}
}

/* handler for Netscape Navigator clients that screw up the display
 * of CSS pages when reloaded
 */
function NN_reloadPage( init )
{
	if ( init == true ) with ( navigator )
	{
		if ( ( appName == "Netscape" ) && ( parseInt ( appVersion ) == 4 ) )
		{
			document.NN_pgW = innerWidth;
			document.NN_pgH = innerHeight;
			event_attach ( 'onresize' , NN_reloadPage );
		}
	}
	else if ( innerWidth != document.NN_pgW || innerHeight != document.NN_pgH )
	{
		location.reload();
	}
}

/* Min Width v1.1.3 by PVII-www.projectseven.com
 * http://www.projectseven.com/tutorials/css/minwidth/index.htm
 *
 * modified for readability and ability to limit application to
 * IE only so CSS min-width property may be used by compliant
 * browsers.
 *
 * NOTE: horizontal spacing (margins, padding, borders) set in
 *       % values may cause IE to crash when using this script.
 */
function set_min_width( obj_name , min_width , ieOnly )
{
	if ( ( typeof( ieOnly ) ).toLowerCase() == 'undefined' )
	{
		ieOnly = true;
	}
	if ( ieOnly == false || ( document.getElementById && navigator.appVersion.indexOf( "MSIE" ) > -1 && !window.opera ) )
	{
		document.min_width_obj_name = obj_name;
		document.min_width_size = min_width;
		document.resizing = false;
		event_attach( 'onload' , control_min_width );
		event_attach( 'onresize' , control_min_width );
	}
}
function control_min_width()
{
	var cw , w , pl , pr , ml , mr , br , bl , ad , theDiv = document.min_width_obj_name;
	var g = document.getElementById( theDiv );
	w = parseInt(document.min_width_size);
	if ( g && document.body && document.body.clientWidth )
	{
		gs = g.currentStyle;
		cw = parseInt( document.body.clientWidth );
		pl = parseInt( gs.paddingLeft );
		pr = parseInt( gs.paddingRight );
		ml = parseInt( gs.marginLeft );
		mr = parseInt( gs.marginRight );
		bl = parseInt( gs.borderLeftWidth );
		br = parseInt( gs.borderRightWidth );
		ml = ml ? ml : 0;
		mr = mr ? mr : 0;
		pl = pl ? pl : 0;
		pr = pr ? pr : 0;
		bl = bl ? bl : 0;
		br = br ? br : 0;
		ad = pl + pr + ml + mr + bl + br;
		if ( cw <= w )
		{
			w -= ad;
			g.style.width = w + "px";
		}
		else
		{
			g.style.width = "auto";
		}
	}
}

/* Cookie API  v1.0.1
 * documentation: http://www.dithered.com/javascript/cookies/index.html
 * license: http://creativecommons.org/licenses/by/1.0/
 * code (mostly) by Chris Nott (chris[at]dithered[dot]com)
 */
function setCookie( name, value, expires, path, domain, secure )
{
	 var curCookie = name + "=" + escape(value) +
		((expires) ? "; expires=" + expires.toGMTString() : "") +
/*		((path) ? "; path=" + path : "") + */
		"; path=/" +
		((domain) ? "; domain=" + domain : "") +
		((secure) ? "; secure" : "");
	document.cookie = curCookie;
}
function getCookie( 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));
}
function deleteCookie( name, path, domain )
{
	var value = getCookie( name );
	if ( value != null )
	{
		document.cookie = name + "=" + 
			((path) ? "; path=" + path : "") +
			((domain) ? "; domain=" + domain : "") +
			"; expires=Thu, 01-Jan-70 00:00:01 GMT";
	}
	return value;
}

/* font size functions operate on the body element's
 * style and defines sizes in percentages. because
 * the default font size is set to 0 in the array,
 * the first value in the font_sizes array should
 * _ALWAYS_ be 100.
 *
 *	var font_sizes = new Array( 100, 110, 120 );
 *	var current_font_size = 0;
 *	event_attach( 'onload' , loadFontSize );
 */
function loadFontSize ()
{
	current_font_size = parseInt( '0' + getCookie ( "font_size" ) );
	setFontSize ( current_font_size );
}
function setFontSize( size )
{
	if( size >= 0 && size < font_sizes.length )
	{
		current_font_size = size;
	}
	else if( ++current_font_size >= font_sizes.length )
	{
		current_font_size = 0;
	}
	if ( document.body )
	{
		document.body.style.fontSize = font_sizes[ current_font_size ] + '%';
		setCookie( "font_size" , current_font_size );
	}
}

/* standard trim function to remove leading and trailing 
 * whitespace from a given string
 */
function trim( str )
{
   return str.replace(/^\s*|\s*$/g,"");
}

/* stylesheets should be defined in the HTML via a LINK tag
 * and rel attribute set to "alternate stylesheet". the title
 * attribute is then set in the format of "title : group"
 * this function will disable all but the stylesheet specified
 * by title in the group specified by group.
 *
 * Based on code by Paul Sowden
 * http://www.alistapart.com/articles/alternate/
 */
function setActiveStyleSheet( title , group )
{
	var i, a, b, g, t;
	if ( !title || !group )
	{
		return;
	}
	for ( i = 0; ( a = document.getElementsByTagName( "link" )[ i ] ); i++ ) 
	{
		if ( a.getAttribute( "rel" ).indexOf( "style" ) != -1 && a.getAttribute( "title" ) )
		{
			b = ( a.getAttribute( "title" ) ).split( ":" );
			g = trim( b[ b.length - 1 ] );
			if ( g.toLowerCase() == group.toLowerCase() )
			{
				a.disabled = true;
				t = trim( ( a.getAttribute( "title" ) ).substring( 0, a.getAttribute( "title" ).length - b[ b.length - 1 ].length - 1 ) );
				if( t.toLowerCase() == title.toLowerCase() )
				{
					a.disabled = false;
				}
			}
			setCookie( "style_" + g.toLowerCase() , title );
		}
	}
}
function getPreferredStyleSheet ( group )
{
	return ( getCookie ( "style_" + group ) );
}

/* Son of Suckerfish Dropdowns
 * http://www.htmldog.com/articles/suckerfish/dropdowns/
 */
function sfHover ( objID )
{
	var sfEls = document.getElementById( objID ).getElementsByTagName( "LI" );
	for (var i=0; i<sfEls.length; i++)
	{
		sfEls[i].onmouseover = function()
		{
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout = function()
		{
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}

/***********************/

function tD (elementId)
{
  var myElement = document.getElementById(elementId);
  if(myElement.style.display == 'none')
  {
    myElement.style.display = 'block';
  }
  else
  {
    myElement.style.display = 'none';
  }
}


/*----------------------------------------------------------------------------\
|                               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;
}