Mega Code Archive
Return true from window onerror event
<![CDATA[
< html>
<head>
<title>OnError Example</title>
<script type="text/javascript">
window.onerror = function () {
alert("An error occurred.");
return true;
}
</script>
</head>
<body onload="nonExistentFunction()">
</body>
</html>
]]>