function switchLocation(location) {

  var selectedlocation = location.options[location.selectedIndex].value;
  
  if(document.getElementById)
	{
		var el = document.getElementById(selectedlocation);
		var ar = document.getElementById("locationdiv").getElementsByTagName("select"); 
		//var dummy = document.getElementById("dummy");
		if(el.style.display != "block")
		{ 	for (var i=0; i<ar.length; i++){
				if (ar[i].className=="location") 
				ar[i].style.display = "none";
				ar[i].disabled = true;
			}	
			//dummy.style.display = "none";
			el.style.display = "block";
			el.disabled = false;
		}
		else
		{
			el.style.display = "none";
		}
	}
	
	
}// JavaScript Document