// Find all <input> elements in the document
  var input = document.getElementsByTagName(“input”);
  for ( var i = 0; i < input.length; i++ ) {
  
      // Bind a keypress handler to the <input> element
      input[i].onkeypress = function(e) {
          // Prevent the default action, if the user presses the enter key
          return e.keyCode != 13;
      };
  
  }