function checkContact (form) {
   var msg = '';
   if (document.getElementById) {
      if ((document.getElementById('fname').value == '') || (document.getElementById('lname').value == '')) {
	     msg = 'please provide your full name so that we may reply to your inquiry.';
	  }
      else if ((document.getElementById('email').value == '') || (document.getElementById('how_heard').value == '')) {
	    msg = 'Please enter your email address and \n how you heard about us.';
	  }
   }
   if (msg != '') { alert(msg); }
   else { form.submit(); }
   return false;
}