function checking_key(keyword_form)
{
if(keyword_form.keyword.value=="")
   {
   alert('Please enter a keyword in the field to search the Job Database');
   keyword_form.keyword.focus();
   return false;
   }
}
function checking_type(search_type)
{
if(search_type.Job_type.selectedIndex==0)
   {
   alert('Please select Job Type');
   search_type.Job_type.focus();
   return false;
   }
}
function checking_campus(search_campus)
{
if(search_campus.Campus.selectedIndex==0)
   {
   alert('Please select Campus');
   search_campus.Campus.focus();
   return false;
   }
}
function checking_status(search_status)
{
if(search_status.Job_status.selectedIndex==0)
   {
   alert('Please select Job Status');
   search_status.Job_status.focus();
   return false;
   }
}