/*==========================================================================*\

|| ######################################################################## ||

|| # ILance 3.0.0 Release Candidate 1 - Enterprise Edition		  # ||

|| # -------------------------------------------------------------------- # ||

|| # Copyright ©2000–2006 Ilance Inc. All Rights Reserved.	          # ||

|| # This file may not be redistributed in whole or significant part. 	  # ||

|| # ----------------- ILANCE IS NOT FREE SOFTWARE ---------------------- # ||

|| #	 http://www.ilance.ca | http://www.ilance.ca/license.html	  # ||

|| # -------------------------------------------------------------------- # ||

|| # Title........: WebFX Pane tab pane functions

|| # -------------------------------------------------------------------- # ||

|| ######################################################################## ||

|| # CVS History and Technical Application Information

|| # -------------------------------------------------------------------- # ||

|| # CVS:	$RCSfile: webfx.js,v $

|| # CVS:	$Version: 3.0.0 $

|| # CVS:  $Revision: 1.1.1.1 $

|| # CVS:	   $Date: 2006/12/04 13:22:42 $

|| # CVS:    $Author: root $

|| # -------------------------------------------------------------------- # ||

|| ######################################################################## ||

\*==========================================================================*/

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;

}



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 = null;



	if (ILADMIN == 1)

	{

		tabIndex = 0;



		if (this.useCookie)

		{

			tabIndex = Number(WebFXTabPane.getCookie("webfxtab_" + this.element.id));

			if (isNaN(tabIndex))

			{

				tabIndex = 0;

		    }

		}

	}

	else

	{

		var tabIndex = document.formtab.viewtab.value;

	}



	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);

	}

};



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 );

};



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;

	}

}



// 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;

	}

}