Finally get fancyBox working in Firefox!

Fixed the error at e7e6743.

source/_includes/custom/after_footer.html

@@ -15,39 +15,10 @@
   var modernizr = document.createElement("script");
   modernizr.src = "{{ root_url }}/javascripts/modernizr-2.0.js";
   document.body.appendChild(modernizr);
-  var jqri = document.createElement("script");
-  jqri.src = "//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js";
-  document.body.appendChild(jqri);
   var octjs = document.createElement("script");
   octjs.src = "{{ root_url }}/javascripts/octopress.js";
   octjs.type = "text/javascript";
   document.body.appendChild(octjs);
-
-  // FancyBox
-  jqri.onload = function () {
-    var fbjs = document.createElement("script");
-    fbjs.src = "/fancybox/source/jquery.fancybox.pack.js?v=2.1.5";
-    fbjs.type = "text/javascript";
-    document.body.appendChild(fbjs);
-    var fbbtnjs = document.createElement("script");
-    fbbtnjs.src = "/fancybox/source/helpers/jquery.fancybox-buttons.js?v=1.0.5";
-    fbbtnjs.type = "text/javascript";
-    document.body.appendChild(fbbtnjs);
-    var fbmedjs = document.createElement("script");
-    fbmedjs.src = "/fancybox/source/helpers/jquery.fancybox-media.js?v=1.0.6";
-    fbmedjs.type = "text/javascript";
-    document.body.appendChild(fbmedjs);
-    var fbthmjs = document.createElement("script");
-    fbthmjs.src = "/fancybox/source/helpers/jquery.fancybox-thumbs.js?v=1.0.7";
-    fbthmjs.type = "text/javascript";
-    document.body.appendChild(fbthmjs);
-
-    // FancyBox local config
-    var fblocjs = document.createElement("script");
-    fblocjs.src = "/javascripts/FancyBoxLocal.js";
-    fblocjs.type = "text/javascript";
-    document.body.appendChild(fblocjs);
-  }
 }
 
 if (window.addEventListener) {
@@ -58,6 +29,33 @@
   window.onload = downloadJSAtOnload;
 }
 
+(function() {
+    function getScript(url,success){
+        var script=document.createElement('script');
+        script.src=url;
+        var head=document.getElementsByTagName('head')[0],
+        done=false;
+        script.onload=script.onreadystatechange = function(){
+        if ( !done && (!this.readyState || this.readyState == 'loaded' || this.readyState == 'complete') ) {
+            done=true;
+            success();
+            script.onload = script.onreadystatechange = null;
+            head.removeChild(script);
+        }
+        };
+        head.appendChild(script);
+    }
+
+getScript("//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js",function(){
+    getScript("/fancybox/source/jquery.fancybox.pack.js?v=2.1.5", function() {});
+    getScript("/fancybox/source/helpers/jquery.fancybox-buttons.js?v=1.0.5", function() {});
+    getScript("/fancybox/source/helpers/jquery.fancybox-media.js?v=1.0.6", function() {});
+    getScript("/fancybox/source/helpers/jquery.fancybox-thumbs.js?v=1.0.7", function() {});
+    getScript("/javascripts/FancyBoxLocal.js", function() {});
+});
+
+})();
+
 var cb = function() {
   var h = document.getElementsByTagName('head')[0];
 
@@ -96,6 +94,7 @@
   tcss.type = "text/css";
   h.parentNode.insertBefore(tcss, h);
 
+  // CSS files for FancyBox
   var fbcss = document.createElement("link");
   fbcss.href = "/fancybox/source/jquery.fancybox.css?v=2.1.5";
   fbcss.rel = "stylesheet";
@@ -114,7 +113,6 @@
   fbthmcss.type = "text/css";
   fbthmcss.media = "screen";
   document.body.appendChild(fbthmcss);
-
 };
 
 var raf = requestAnimationFrame || mozRequestAnimationFrame ||