<!--

function submitCheck(form1){


   var submitted = false;

   if(submitted){

      alert("You have already submitted this message. Please wait...");
      return false;

   } else {

        if (form1.usr_firstname.value == ""){

            alert(" Please enter your first name. ");

            return false;

        }
        if (form1.usr_lastname.value == ""){

            alert(" Please enter your last name. ");

            return false;

        }
        if (form1.usr_phone.value == ""){

            alert(" Please enter your daytime phone number. ");

            return false;

        }
        if (form1.usr_loc.value == "") {

            alert(" Please enter your location. ");

            return false;

        } else {

            submitted = true;

            return true;

        }

   }

}

// -->