

<!--
  var alert_message = "";

  function show_alert() {
    if (alert_message != "") {
      alert("\n ------Warning! ------\n" +
            alert_message );
      alert_message = "";
      return false;
    }
    return true;
  }
  
 
 
  function check_name() {
	      if (document.contactform.name.value == "") {
	                alert_message = alert_message +
			  "Name not entered.\n";
	      }
	    }
  
  function check_email() {
	      if (document.contactform.email.value == "") {
	                alert_message = alert_message +
			  "Email not entered.\n";
	      }
	    }

  function check_telephone() {
	      if (document.contactform.telephone.value == "") {
	                alert_message = alert_message +
			  "Telephone Number not entered.\n";
	      }
	    }		
	    

  function validate() {
	  
	    check_name();
	    check_email();
	    check_telephone();

	  
	    if (alert_message == '')
	      return true;
	    show_alert();
	    return false;
	  }    
	    
  // -->