// DEPENDENCIES
// * /scripts/lesson.js
// 	* /scripts/toc.js
window.onload = function() {
    loadLesson(getUrlVars()['subject'], getUrlVars()['chapter'], getUrlVars()['id']);
}

function getUrlVars() {
    var vars = [], hash;
    var hashes = window.location.href.slice(window.location.href.indexOf('?') + 1).split('&');
    for (var i = 0; i < hashes.length; i++) {
        hash = hashes[i].split('=');
        vars.push(hash[0]);
        vars[hash[0]] = hash[1];
    }
    return vars;
}