samuelcole

// Checks if a DOM object is valid.
// Expects an array of functions in data('validations') that return true when
// valid.
//
// Triggers field_invalid or field_valid.
// Calls options.invalid() or options.valid().

$.fn.validate = function(options) {
  var $this = $(this);
  /* $this.data('validations') is an array of functions, each of which

samuelcole

window.match_protocol = function(url) {
  var RE_PROTO = /^\w+:\/\//;
  if(RE_PROTO.test(url)) {
    var protocol = window.location.protocol;
    url = url.replace(RE_PROTO, protocol + "//");
  }
  return url;
};

samuelcole

// zero dependency $.getScript for loading external javascript (like jQuery.js
// or other big libraries) in a way that does not block the normal page load
// (http://www.yuiblog.com/blog/2008/07/22/non-blocking-scripts/).
//
// heavily influenced by/copied from jQuery's ajax functions (http://jquery.com)

window.$ = {
  getScript: function(script_src, callback) {
    var done = false;
    var head = document.getElementsByTagName("head")[0] || document.documentElement;

samuelcole

window.requires_urls = {};

(function($){

$.requires = function(url, callback) {
  // look for the url in our cached url results
  for(called_url in window.requires_urls) {
    var cached = window.requires_urls[called_url].cached;
    // if a url matches and it has cached results
    if(url_equals(url, called_url) && cached.data) {