/* Copyright (c) 2006 Patrick Fitzgerald */

function tabberObj(argsObj)
{
	var arg;
	this.div=null;
	this.classMain="tabber";
	this.classMainLive="tabberlive";
	this.classTab="tabbertab";
	this.classTabDefault="tabbertabdefault";
	this.classNav="tabbernav";
	this.classTabHide="tabbertabhide";
	this.classNavActive="tabberactive";
	this.titleElements=['h2','h3','h4','h5','h6'];
	this.titleElementsStripHTML=true;
	this.removeTitle=true;
	this.addLinkId=false;
	this.linkIdFormat='<tabberid>nav<tabnumberone>';
	for(arg in argsObj){
		this[arg]=argsObj[arg];
	}
	this.REclassMain=new RegExp('\\b'+this.classMain+'\\b','gi');
	this.REclassMainLive=new RegExp('\\b'+this.classMainLive+'\\b','gi');
	this.REclassTab=new RegExp('\\b'+this.classTab+'\\b','gi');
	this.REclassTabDefault=new RegExp('\\b'+this.classTabDefault+'\\b','gi');
	this.REclassTabHide=new RegExp('\\b'+this.classTabHide+'\\b','gi');
	this.tabs=new Array();
	if(this.div)
	{
		this.init(this.div);this.div=null;
	}
}
tabberObj.prototype.init=function(e)
{
	var childNodes,i,i2,t,defaultTab=0,DOM_ul,DOM_li,DOM_a,aId,headingElement;
	if(!document.getElementsByTagName){
		return false;
	}
	if(e.id){
		this.id=e.id;
	}
	this.tabs.length=0;childNodes=e.childNodes;
	for(i=0;i<childNodes.length;i++)
	{
		if(childNodes[i].className&&childNodes[i].className.match(this.REclassTab))
		{
			t=new Object();
			t.div=childNodes[i];
			this.tabs[this.tabs.length]=t;
			if(childNodes[i].className.match(this.REclassTabDefault))
			{
				defaultTab=this.tabs.length-1;
			}
		}
	}
	DOM_ul=document.createElement("ul");
	DOM_ul.className=this.classNav;
	for(i=0;i<this.tabs.length;i++)
	{
		t=this.tabs[i];
		t.headingText=t.div.title;
		if(this.removeTitle)
		{
			t.div.title='';
		}
		if(!t.headingText){
			for(i2=0;i2<this.titleElements.length;i2++){
				headingElement=t.div.getElementsByTagName(this.titleElements[i2])[0];
				if(headingElement)
				{
					t.headingText=headingElement.innerHTML;
					if(this.titleElementsStripHTML)
					{
						t.headingText.replace(/<br>/gi," ");
						t.headingText=t.headingText.replace(/<[^>]+>/g,"");
					}
					break;
				}
			}
		}
		if(!t.headingText)
		{
			t.headingText=i+1;
		}
		DOM_li=document.createElement("li");
		t.li=DOM_li;
		DOM_a=document.createElement("a");
		DOM_a.appendChild(document.createTextNode(t.headingText));
		DOM_a.href="javascript:void(null);";
		DOM_a.title=t.headingText;
		DOM_a.onclick=this.navClick;
		DOM_a.tabber=this;
		DOM_a.tabberIndex=i;
		if(this.addLinkId&&this.linkIdFormat)
		{
			aId=this.linkIdFormat;
			aId=aId.replace(/<tabberid>/gi,this.id);
			aId=aId.replace(/<tabnumberzero>/gi,i);
			aId=aId.replace(/<tabnumberone>/gi,i+1);
			aId=aId.replace(/<tabtitle>/gi,t.headingText.replace(/[^a-zA-Z0-9\-]/gi,''));
			DOM_a.id=aId;
		}
		DOM_li.appendChild(DOM_a);
		DOM_ul.appendChild(DOM_li);
	}
	e.insertBefore(DOM_ul,e.firstChild);
	e.className=e.className.replace(this.REclassMain,this.classMainLive);
	this.tabShow(defaultTab);
	if(typeof this.onLoad=='function')
	{
		this.onLoad({
			tabber:this
		});
	}
	return this;
};

tabberObj.prototype.navClick=function(event)
{
		var
		rVal,a,self,tabberIndex,onClickArgs;
		a=this;
		if(!a.tabber)
		{
			return false;
		}
		self=a.tabber;
		tabberIndex=a.tabberIndex;
		a.blur();
		if(typeof self.onClick=='function')
		{
			onClickArgs={
				'tabber':self,
				'index':tabberIndex,
				'event':event
			};
			if(!event){
				onClickArgs.event=window.event;
			}
			rVal=self.onClick(onClickArgs);
			if(rVal===false){
				return false;
			}
		}
		self.tabShow(tabberIndex);return false;
	};
	tabberObj.prototype.tabHideAll=function()
	{
		var i;
		for(i=0;i<this.tabs.length;i++)
		{
			this.tabHide(i);
		}
	};
	tabberObj.prototype.tabHide=function(tabberIndex)
	{
		var div;
		if(!this.tabs[tabberIndex])
		{
			return false;
		}
		div=this.tabs[tabberIndex].div;
		if(!div.className.match(this.REclassTabHide))
		{
			div.className+=' '+this.classTabHide;
		}
		this.navClearActive(tabberIndex);
		return this;
	};
	tabberObj.prototype.tabShow=function(tabberIndex)
	{
		var div;
		if(!this.tabs[tabberIndex])
		{
			return false;
		}
		this.tabHideAll();
		div=this.tabs[tabberIndex].div;
		div.className=div.className.replace(this.REclassTabHide,'');
		this.navSetActive(tabberIndex);
		if(typeof this.onTabDisplay=='function')
		{
			this.onTabDisplay({
				'tabber':this,
				'index':tabberIndex
			});
		}
		return this;
	};
	tabberObj.prototype.navSetActive=function(tabberIndex)
	{
		this.tabs[tabberIndex].li.className=this.classNavActive;
		return this;
	};
	tabberObj.prototype.navClearActive=function(tabberIndex)
	{
		this.tabs[tabberIndex].li.className='';
		return this;
	};
	function tabberAutomatic(tabberArgs)
	{
	var	tempObj,divs,i;
	if(!tabberArgs)
	{
		tabberArgs={};
	}
	tempObj=new tabberObj(tabberArgs);
	divs=document.getElementsByTagName("div");
	for(i=0;i<divs.length;i++)
	{
		if(divs[i].className&&divs[i].className.match(tempObj.REclassMain)){
			tabberArgs.div=divs[i];
			divs[i].tabber=new tabberObj(tabberArgs);
		}
	}
	return this;
}
function tabberAutomaticOnLoad(tabberArgs)
{
	var oldOnLoad;
	if(!tabberArgs)
	{
		tabberArgs={};
	}
	oldOnLoad=window.onload;
	if(typeof window.onload!='function')
	{
		window.onload=function()
		{
			tabberAutomatic(tabberArgs);
		};
	}
	else
	{
		window.onload=function(){
			oldOnLoad();
			tabberAutomatic(tabberArgs);
		};
	}
}
if(typeof tabberOptions=='undefined')
{
	tabberAutomaticOnLoad();
}
else{
	if(!tabberOptions['manualStartup'])
	{
		tabberAutomaticOnLoad(tabberOptions);
	}
}