function showtab(id)
{
	//alert(document.getElementById('home_'+id))
	//alert(document.getElementById('home_'+id));
	switch(id)
	{
		case 1:
			document.getElementById('home_1').className="current";
			document.getElementById('home_2').className="";
			document.getElementById('home_3').className="";
			document.getElementById('desc_1').style.display="";
			document.getElementById('desc_2').style.display="none";
			document.getElementById('desc_3').style.display="none";
			break;
		case 2:
			document.getElementById('home_1').className="";
			document.getElementById('home_2').className="current";
			document.getElementById('home_3').className="";
			document.getElementById('desc_1').style.display="none";
			document.getElementById('desc_2').style.display="";
			document.getElementById('desc_3').style.display="none";
			break;	
		case 3:
			document.getElementById('home_1').className="";
			document.getElementById('home_2').className="";
			document.getElementById('home_3').className="current";
			document.getElementById('desc_1').style.display="none";
			document.getElementById('desc_2').style.display="none";
			document.getElementById('desc_3').style.display="";
			break;	
	}		
	if(id==1)
	{
		val=2;
	}
	else if(id==2)
	{
		val=3;
	}
	else
	{
		val=1;			
	}
	//setTimeout("showtab(val)",20000); 
}