function on(link) {
   document.getElementById(link).style.color = "#0000FF";
}

function off(link) {
   document.getElementById(link).style.color = "#FFFFFF";
}

var submitcount = 0;

function validateForm() {
   var str = document.contact.name.value;
   if(str < 1) {
      alert("Please enter your name.");
      document.contact.name.focus();
      return false;
   }
   str = document.contact.email.value;
   if(str < 1 || str.indexOf("@",0) == -1) {
      alert("Please enter a valid return email address.");
      document.contact.email.focus();
      return false;
   } 
   str = document.contact.subject.value;
   if(str < 1) {
      alert("Please enter a subject for your message.");
      document.contact.subject.focus();
      return false;
   } 
      str = document.contact.message.value;
   if(str < 1) {
      alert("Please enter a message to be sent.");
      document.contact.message.focus();
      return false;
   } 
   else {
      if (submitcount == 0) {
         submitcount++;
         document.contact.submitbutton.value = "Sending Message...";
         return true;
      }
      else {
         alert("Please wait while your message is sent. Thanks!");
         return false;
      }
   }
}