disable go button on the Iphone

disable go button on the Iphone
///////////////////////////////////// return query forms 26 12 56 by eakkasit tunsakool
!function ($) {
  "use strict"; // jshint ;
 /*disable enter key / go button iphone*/
  function stopRKey(evt) {
    var evt = (evt) ? evt : ((event) ? event : null);
    var node = (evt.target) ? evt.target : ((evt.srcElement) ? evt.srcElement : null);
    if ((evt.keyCode == 13) && (node.type=="text")) {return false;}
    if ((evt.keyCode == 13) && (node.type=="email")) {return false;}
    if ((evt.keyCode == 13) && (node.type=="tel")) {return false;}
    if ((evt.keyCode == 13) && (node.type=="number")) {return false;}
   }
   document.onkeypress = stopRKey;

    $(function() {
      $('.form-search').submit(QueryForm);

    }) // $ function
     function QueryForm(){
        return true;
      }
}(window.jQuery);

///////////////////////////////////// End . return query forms 26 12 56