function showhidetab(tbid, tabid)
	{
		document.getElementById('tb1').style.display="none";
		var tb2=document.getElementById('tb2');
		var tb3=document.getElementById('tb3');
		if(tb2!=null)
		{
			tb2.style.display="none";
		}
        if(tb3!=null)
		{
			tb3.style.display="none";
		}
		//document.getElementById('tb4').style.display="none";
		document.getElementById(tbid).style.display="block";
	
		//document.getElementById('tb4').style.display="none";
		document.getElementById(tbid).style.display="block";
		
		document.getElementById('tab1').className="TabbedPanelsTab";	
		document.getElementById('tab2').className="TabbedPanelsTab";	
		document.getElementById('tab3').className="TabbedPanelsTab";	
		//document.getElementById('tab4').className="TabbedPanelsTab";	
		document.getElementById(tabid).className="TabbedPanelsTabSelected";		
	}
	function desttab(tbid, tabid)
	{
		document.getElementById('tb1').style.display="none";
		var tb2=document.getElementById('tb2');
		var tb3=document.getElementById('tb3');
		if(tb2!=null)
		{
			tb2.style.display="none";
		}
        if(tb3!=null)
		{
			tb3.style.display="none";
		}

		document.getElementById(tbid).style.display="block";
		
		document.getElementById('tab1').className="destTab";	
		document.getElementById('tab2').className="destTab";	
		document.getElementById('tab3').className="destTab";	
		document.getElementById(tabid).className="destTabSelected";		
	}