function SearchSubmit() 
{

 if (!CheckDetails() ) {	
  document.form1.submit();
  return true;
 }
 else {
  return false;
 }

}


function CheckDetails() {

 if (!document.form1.keywords.value.length)
 {
  document.form1.keywords.focus()
  alert('You have not filled out all of the necessary details.\n\n' +
  'Please enter at least one keyword.');
  return true;
 }

 else 
 {
  return false;
 }

}