// JavaScript Document

function IsEmpty(aTextField) {
   if ((aTextField.value.length==0) || (aTextField.value==null)) {
      return true;
   } else { 
   return false;
   }
}

function ValidateForm(form) {
   if(IsEmpty(form.strSearch))  { 
      alert('Please enter some text to search against') 
      form.strSearch.focus(); 
      return false; 
   } 
 
return true;
 
}