function validate_form() {
  onlySpace = 0;
  form = document.myform;
  var word = form.words.value;
  
  for(ctr = 0; ctr < word.length; ctr++)
    if( word.charAt(ctr) != ' ' )
      onlySpace = 1;

  if ( word.length == 0 ) {
    alert("Please enter some text for searching");
    return false;
  } 
  else if( onlySpace == 0 ) {
    alert("Please enter some text for searching");
    return false;
  }
  else
    return true;
}
function Goto(s) {
var d = s.options[s.selectedIndex].value;
OpenWin = window.open(d, "_top", "menubar,toolbar,directories,location,scrollbars,status,resizable,alwaysRaised");
}