function isQueryValid(thisForm){
 with(thisForm){
    if (!query.value){
      return 0;
    }
  }
  return 1;
}

function validateForm(){  
  var flag = 1;
  var basicForm = document.search;  
    
  /* avoid null query */
  if (!isQueryValid(basicForm)){ alert(alertMsg[0]); flag = 0;}
    return flag;
}