HTML5 audio loading efficiency hack to be called on play()

audiohack.js

// an array of the src attributes of every audio element on the page (assumes sources are already set, obviously)
var sources = [];
$("audio").each (function(i) {
    $(this).attr("id", i.toString());
    sources.push($(this).find("source").attr("src"));
});

// call this function when the user clicks the play button
// $target is a jQuery object containing the "path" to your audio elements in the dom
function hack($target) {
    $("audio source").attr("src", "");
    var id = parseInt($target.find("audio").attr("id"));
    $target.find("audio source").attr("src", sources[id]);
    $("audio").load();
}