Moved egrep function into its own file

public/javascripts/jquery.egrep.js

@@ -0,0 +1,30 @@
+/**
+ * Basic function to help with regular expressions within jQuery
+ *
+ * @author Yomi Colledge
+ * 
+ */
+(function($) {
+  $.fn.egrep = function(pat) {
+   var out = [];
+   var textNodes = function(n) {
+    if (n.nodeType == Node.TEXT_NODE) {
+     var t = typeof pat == 'string' ?
+      n.nodeValue.indexOf(pat) != -1 :
+      pat.test(n.nodeValue);
+     if (t) {
+      out.push(n.parentNode);
+     }
+    }
+    else {
+     $.each(n.childNodes, function(a, b) {
+      textNodes(b);
+     });
+    }
+   };
+   return this.each(function() {
+    textNodes(this);
+   });
+
+  };
+})(jQuery);