gistfile1.txt

// This indicates that this function is going to extend from jQuery
// and it accepts a jQuery selector as a parameter
$.fn.randomize = function(selector){
    // This will attempt to find a selector if one exists (this.find(selector)) or it will use the current object (this)
    // And it will target the parent of whatever is selected
    (selector ? this.find(selector) : this).parent().each(function(){
        // It will then target all of the children below this selector and sort each of them based off of a randomly generated value
        // from Math.random(). This will apply the order to the elements
        $(this).children(selector).sort(function(){
            return Math.random() - 0.5;
        })
        // Each of the elements will then be detached from the DOM and...
        .detach()
        // Then reappended using the new order
        .appendTo(this);
    });
    // This returns the object to support chaining calls in jQuery
    return this;
};