function checkSearch()
{
 var valid=false;
 if(Sform.q.value=="")
 {
  alert("Search Field Can't be left blank");
  Sform.q.focus();
 }
 else if(Sform.q.value=="keywords")
 {
  alert("Search Field Can't be left blank");
  Sform.q.focus();
 }
 else 
 {
  valid=true;
 }
 return valid;
}