Disable button default click

Question

<script language=javascript>
<!--
function document.onkeypress()
{
var val=event.keyCode;
if(val==13)
return false;
}
//-->
</script>

Answer 1

seehttp://expert.csdn.net/Expert/topic/2367/2367763.xml?temp=.2104761

Answer 2

<script language=Javascript>
function document.onclick()
{
  if (event.keyCode == 13)
  {
     var btn = document.getElementById("YourButtonID");
     var e = event.srcElement;
     if (e != btn)
      btn.click();
  }
}
</script>