function refreshbg()
{		
	var bodyid = document.getElementById("front");
	
	
	var ranNum= Math.floor(Math.random()*16);  	
	
	if(ranNum == "1")
	{
		var bg = bodyid.className = "bg1";	
	}
	else if(ranNum == "2")
	{
		var bg = bodyid.className = "bg2";	
	}
	else if(ranNum == "3")
	{
		var bg = bodyid.className = "bg1";	
	}
	else if(ranNum == "4")
	{
		var bg = bodyid.className = "bg2";	
	}
	else if(ranNum == "5")
	{
		var bg = bodyid.className = "bg1";	
	}
	else if(ranNum == "6")
	{
		var bg = bodyid.className = "bg2";	
	}
	else if(ranNum == "7")
	{
		var bg = bodyid.className = "bg1";	
	}
	else if(ranNum == "8")
	{
		var bg = bodyid.className = "bg2";	
	}	
	else if(ranNum == "9")
	{
		var bg = bodyid.className = "bg1";	
	}	
	else if(ranNum == "10")
	{
		var bg = bodyid.className = "bg2";	
	}	
	else if(ranNum == "11")
	{
		var bg = bodyid.className = "bg1";	
	}
	else if(ranNum == "12")
	{
		var bg = bodyid.className = "bg2";	
	}	
	else if(ranNum == "13")
	{
		var bg = bodyid.className = "bg1";	
	}		
	else if(ranNum == "14")
	{
		var bg = bodyid.className = "bg2";	
	}	
	else if(ranNum == "15")
	{
		var bg = bodyid.className = "bg1";	
	}		
	else
	{
		var bg = bodyid.className = "bg2";	
	}
}