//var initialtab=[1, "atf1"]

	function cascadedstyle(el, cssproperty, csspropertyNS)
	{
		if (el.currentStyle)
		{
			return el.currentStyle[cssproperty];
		}
		else if (window.getComputedStyle)
		{
			var elstyle=window.getComputedStyle(el, "");
			return elstyle.getPropertyValue(csspropertyNS);
		}
	}

	
	var previoustab="";
	
	function expandcontent(cid, aobject)
	{
		if (document.getElementById)
		{
			highlighttab(aobject);
			detectSourceindex(aobject);
			if (previoustab!="")
				document.getElementById(previoustab).style.display="none";
			
			document.getElementById(cid).style.display="block";
			previoustab=cid;
			
			if (aobject.blur)
				aobject.blur();
			return true;
		}
		else
		{
			return true;
		}
	}

	function highlighttab(aobject)
	{
		if (typeof tabobjlinks=="undefined")
			collecttablinks();
		
		for (i=0; i<tabobjlinks.length; i++)
		{
			tabobjlinks[i].style.backgroundColor=initTabcolor;
		}
	
		var themecolor=aobject.getAttribute("theme")? aobject.getAttribute("theme") : initTabpostcolor;
		
		aobject.style.backgroundColor=document.getElementById("tableframe").style.backgroundColor=themecolor;
	}

	function collecttablinks()
	{
		var tabobj=document.getElementById("tabbuttons");
		tabobjlinks=tabobj.getElementsByTagName("A");
	}

	function detectSourceindex(aobject)
	{
		for (i=0; i<tabobjlinks.length; i++)
		{
			if (aobject==tabobjlinks[i])
			{
				tabsourceindex=i;
				break;
			}
		}
	}

	function do_onload()
	{
		collecttablinks();
	
		initTabcolor=cascadedstyle(tabobjlinks[1], "backgroundColor", "background-color");
		initTabpostcolor=cascadedstyle(tabobjlinks[0], "backgroundColor", "background-color");
		
		expandcontent(initialtab[1], tabobjlinks[initialtab[0]-1])
	}

	if (window.addEventListener)
	{
		window.addEventListener("load", do_onload, false);
	}
	else if (window.attachEvent)
	{
		window.attachEvent("onload", do_onload);
	}
	else if (document.getElementById)
	{
		window.onload=do_onload;
	}