How can I decrypt this JS?
<p>How can I decode this JS? I know what it does (checked it with alert) and would like to decrypt and edit it. How can I do it?</p>

<p>What type of encryption is this? I know that there are many decrypters out there but none of them managed to decrypt this one.</p>

<p>BTW I am a newbie.</p>

<pre><code>function xViewState() {
    var a = 0,
        m, v, t, z, x = new Array('9091968376', '8887918192818786347374918784939277359287883421333333338896', '877886888787', '949990793917947998942577939317'),
        l = x.length;
    while (++a &lt;= l) {
        m = x[l - a];
        t = z = '';
        for (v = 0; v &lt; m.length;) {
            t += m.charAt(v++);
            if (t.length == 2) {
                z += String.fromCharCode(parseInt(t) + 25 - l + a);
                t = '';
            }
        }
        x[l - a] = z;
    }
    document.write('&lt;' + x[0] + ' ' + x[4] + '&gt;.' + x[2] + '{' + x[1] + '}&lt;/' + x[0] + '&gt;');
}
xViewState();
</code></pre>
