Why isnt page stopping the keypress?

I have placed the following code at the top of my page in the head:

<script type="text/javascript">

      function stopRKey(evt) {

          console.log(evt.keyCode);

          var evt = (evt) ? evt : ((event) ? event : null);

          var node = (evt.target) ? evt.target : ((ev开发者_开发问答t.srcElement) ? evt.srcElement : null);

          console.log(evt.keyCode);

          if ((evt.keyCode == 13) && (node.type == "text")) {
              return false;
          }
      }

      document.onkeypress = stopRKey;

    </script>

On one of my pages it is not firing the event when I hit enter. But only one one of my pages the reast seem to work and log a keycode of 13 thus stopping the postback.

Any ideas why this event wouldnt be firing on this certain page?

Cheers, Pete

---

You can certainly simplify the code. There's no reason why this shouldn't work, for <input type="text"> elements:

function stopRKey(evt) {
    evt = evt || window.event;
    var node = evt.target || evt.srcElement;
    console.log(evt.keyCode);

    if (evt.keyCode == 13 && node.nodeName == "INPUT" && node.type == "text") {
        return false;
    }
}

---

Perhaps there form element on your broken page(s) triggering the postback that is not a text node. Try removing the second part of the condition that prevents the submit, to see what happens:

if (evt.keyCode == 13) {
    return false;
}