add indexOf method if not supported (IE compat)

ui/static/synnefo.js

@@ -15,6 +15,27 @@ function ISODateString(d){
 			pad(d.getUTCSeconds())
 }
 
+// indexOf prototype for IE
+if (!Array.prototype.indexOf) {
+  Array.prototype.indexOf = function(elt /*, from*/) {
+    var len = this.length;
+    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;
+  };
+}
+
+
 function update_confirmations(){
     // hide all confirm boxes to begin with
     $('div.confirm_single').hide();