Hi Mary,

Try using this script.

$(document).ready(function(){
  var allowSubmit = false;
  $('#form1').on('submit', function(e) {
    if(!allowSubmit) {
    	e.preventDefault();
      	
      	// place validation logic here
      	//set allowSubmit to true once operation complete
      	allowSubmit = true;
    }
  });
	
});