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<!doctype html>
<html>
    <head>
        <!-- saved from url=(0014)about:internet -->
        <meta http-equiv="X-UA-Compatible" content="IE=10" />
        <title> </title>
        <style>


        </style>
        <script language="javascript">
            var mousewheelevt=(/Firefox/i.test(navigator.userAgent))? "DOMMouseScroll" : "mousewheel"
            document.addEventListener("mousewheel", function(e){alert('deltaX: ' + e.deltaX)}, false);
        </script>
    </head>
    <body>
        <div id="div1" style="width:800px; height:600px; border:1px solid;" >testdiv</div>
    </body>
</html>