<div id="div"> Only execute javascript on click, not enter key press </div>

$("#div").click(function () {

   /* IF ENTER KEY PRESSED, RETURN FALSE */

   $("#div").keypress(
    function(event){
     if (event.which == '13') {
        event.preventDefault();
        alert('clicked');
      }
   });

  /* Div has been clicked, continue code... */

});

$("#div").MOUSE_CLICK_EVENT(function () {});