== DOM-Based XSS Example

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<script language="javascript"> function resetVals(form)  
{ 
	var temp = document.URL;
	var idx = temp.indexOf('login?');
	var errorMsg = temp.substring(idx+1,temp.length).split('=');
	if (errorMsg\[1\].indexOf("/login?")!=-1)
	{
		var index = errorMsg\[1\].indexOf("/login?");
		var msg = errorMsg\[1\].substring(index,length-1);
		errorMsg\[1\] = msg;
	}
	document.write('<b>'+errorMsg\[1\]+'</b>');
}
</script>
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