Index: branches/5.1.x/core/install/incs/script.js
===================================================================
diff -u -N -r12657 -r13613
--- branches/5.1.x/core/install/incs/script.js	(.../script.js)	(revision 12657)
+++ branches/5.1.x/core/install/incs/script.js	(.../script.js)	(revision 13613)
@@ -4,4 +4,22 @@
 
 function RemoveTranslationLink($label) {
 	return $label;
+}
+
+function in_array(needle, haystack)
+{
+	return array_search(needle, haystack) != -1;
+}
+
+function array_search(needle, haystack)
+{
+	for (var i=0; i<haystack.length; i++)
+	{
+		if (haystack[i] == needle) return i;
+	}
+	return -1;
+}
+
+function jq($selector) {
+	return $selector.replace(/(\[|\]|\.)/g, '\\$1');
 }
\ No newline at end of file