--- jquery.autocomplete.js.orig	2010-01-15 11:00:55.000000000 -0700
+++ jquery.autocomplete.js	2010-01-15 11:04:02.000000000 -0700
@@ -14,7 +14,7 @@
 	
 $.fn.extend({
 	autocomplete: function(urlOrData, options) {
-		var isUrl = typeof urlOrData == "string";
+		var isUrl = typeof urlOrData == "string" || typeof urlOrData == "function";
 		options = $.extend({}, $.Autocompleter.defaults, {
 			url: isUrl ? urlOrData : null,
 			data: isUrl ? null : urlOrData,
@@ -346,10 +346,14 @@
 			term = term.toLowerCase();
 		var data = cache.load(term);
 		// recieve the cached data
+        var url = options.url; 
+        if (typeof url == "function") {
+            url = options.url();
+        }
 		if (data && data.length) {
 			success(term, data);
 		// if an AJAX url has been supplied, try loading the data now
-		} else if( (typeof options.url == "string") && (options.url.length > 0) ){
+		} else if( (typeof url == "string") && (url.length > 0) ){
 			
 			var extraParams = {
 				timestamp: +new Date()
@@ -364,14 +368,16 @@
 				// limit abortion to this input
 				port: "autocomplete" + input.name,
 				dataType: options.dataType,
-				url: options.url,
+				url: url,
 				data: $.extend({
 					q: lastWord(term),
 					limit: options.max
 				}, extraParams),
 				success: function(data) {
 					var parsed = options.parse && options.parse(data) || parse(data);
-					cache.add(term, parsed);
+                    if (typeof options.url != "function") {
+                        cache.add(term, parsed);
+                    }
 					success(term, parsed);
 				}
 			});