Minor sanity check fixes in functions - don't attempt to deep clone an object that might not exist, check for the existance of a native Array.swap before implementing our own, and properly check for jQuery support when displaying changes (ideally this'll be moved out anyway)

js/franz.js

@@ -6,12 +6,14 @@
 
 /* Define some basic prototypes that we'll require later.. */
 
+if(!Array.prototype.swap) {
     Array.prototype.swap = function(a, b) {
 	    var tmp = this[a];
 	    this[a] = this[b];
 	    this[b] = tmp;
         return true; /* For the sake of being complete */
     }
+}
 
 /* allows numeric sorting for built in js sort */
 function sortNumber(a,b) { return a - b;}
@@ -42,6 +44,7 @@ var franz = {
 	},
 
     clone: function(obj) {
+        if(typeof obj !== "undefined") {
             /* Recursively iterate through objects and clone them (Don't even try to put this on the Object prototype (recursion fail)) */
             var returnObj = (obj instanceof Array) ? [] : {};
     
@@ -55,6 +58,7 @@ var franz = {
             }
 
             return returnObj;
+        }
     },
 
 	loadImg: function(img_src) {
@@ -169,7 +173,7 @@ var franz = {
         }
 
         document.getElementById("log_colors").innerHTML = docStr;
-        if(typeof jQuery != "undefined") {
+        if(typeof jQuery !== "undefined") {
             $("#container_bottom").fadeIn("fast");
             setTimeout(function() { $("#testLayout").fadeIn("slow"); }, 500);
         }