A quick-n-dirty jQuery loader for plugins

jquery-dep-loader.js

(function($) {
  var Initialize = function($) {
    alert("Loaded jQuery v." + $.fn.jquery);
    
    // your plugin code here
  };
  
  
  // loader function for jQuery in case jQuery isn't found on the page
  var LoadDependencies = function() {
    var scr = document.createElement('script');
    scr.type = "text/javascript";
    scr.src = "https://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js";
    scr.onreadystatechange = function() {
      if(this.readyState == 'complete') {
        Initialize(jQuery);
      }
    };
    scr.onload = function() {
      Initialize(jQuery);
    };
    document.getElementsByTagName('head')[0].appendChild(scr);
  }
  
  if($ == null) {
    // no jQuery detected, so load up jQuery
    LoadDependencies();
  } else {
    console.debug("jQuery already present");
    Initialize($);
  }
})(window.jQuery || null);