function isZip(s) 
{
     // Check for correct zip code
     reZip = new RegExp(/(^\d{5}$)|(^\d{5}-\d{4}$)/);

     if (!reZip.test(s)) {
          alert("Please enter a valid Zip Code");
          return false;
     }

return true;

}

 function clearMe(formfield){
  if (formfield.defaultValue==formfield.value) {
   formfield.value = ""
   formfield.style.color = '#000000'
   
   }
 }