};
}
+// IE <9 does not support indexOf
+//This prototype is provided by the Mozilla foundation and
+//is distributed under the MIT license.
+//http://www.ibiblio.org/pub/Linux/LICENSES/mit.license
+if (!Array.prototype.indexOf)
+{
+ Array.prototype.indexOf = function(elt /*, from*/)
+ {
+ var len = this.length >>> 0;
+
+ var from = Number(arguments[1]) || 0;
+ from = (from < 0)
+ ? Math.ceil(from)
+ : Math.floor(from);
+ if (from < 0)
+ from += len;
+
+ for (; from < len; from++)
+ {
+ if (from in this &&
+ this[from] === elt)
+ return from;
+ }
+ return -1;
+ };
+}
+
+
//
// requestAnimationFrame shim with setTimeout fallback
//