Create a jQuery Random Filter

This simple and handy jQuery filter return a single random item from a selection of items. Credit to Waldek Mastykarz.

JS - jQuery

Usage:

$('item:random').text();

jQuery.jQueryRandom = 0;
jQuery.extend(jQuery.expr[":"],
{
    random: function(a, i, m, r) {
        if (i == 0) {
            jQuery.jQueryRandom = Math.floor(Math.random() * r.length);
        };
        return i == jQuery.jQueryRandom;
    }
});