function changeType(obj,id){
if(obj.selectedIndex==0){
	return false;
}else{
	document.location = "t_resources_results.aspx?prod=" + id + "&type=" + obj.options[obj.selectedIndex].value
	return true;
}
}

function changeProduct(){
var obj;
var objType;
obj=document.getElementById('ddProd');
objType=document.getElementById('ddType');

if(obj.selectedIndex==0||objType.selectedIndex==0){
	return false;
}else{
	document.location = "t_resources_results.aspx?prod=" + obj.options[obj.selectedIndex].value + "&type=" + objType.options[objType.selectedIndex].value
	return true;
}
}