function shipping(checkedbox,elementname)
{
//	alert(checkedbox)
	
	if(document.checkedbox.checked)
	{
		alert(checkedbox)
	}
	else	
	{
	
		var hiddencontent=document.getElementById(elementname).style;

		if (hiddencontent.display=="none")
		{
			hiddencontent.display="block";
		}
		else
		{
			hiddencontent.display="none";
		}
		
	}

}