function ValidateContactUs(formobj){
var alertMsg= "Please complete the following fields:\n";
var fields=""
if (formobj.txtName.value=="")
	fields=" - Name - \n";
if (formobj.txtComments.value=="")
	fields=fields+" - Comments - \n";
if (formobj.txtEmail.value=="")
	fields=fields+" - Email - \n";	 
if (fields!="")
{
alert(alertMsg+fields);
return false;
}
else
{
return true;
}
}