function validate(formObj) {

 
   if (formObj.contactName.value.length < 3) {
      alert("We're simply dying to know your name");
      return false;
   
   }
   
   if (formObj.contactEmail.value.length < 7) {
      alert('What, no email?');
      return false;
      
   }
   
   if (formObj.contactMessage.value.length < 5) {
      alert('Please, compose a little message for us');
      return false;
   }
   
   return true;
}