--- /home/he54189/tmp/jquery-validate/jquery.validate.js	2008-08-07 15:17:42.000000000 +0800
+++ jquery.validate.js	2008-09-23 09:31:57.000000000 +0800
@@ -197,6 +197,7 @@
 		errorContainer: $( [] ),
 		errorLabelContainer: $( [] ),
 		onsubmit: true,
+        validateHidden: true,
 		ignore: [],
 		onfocusin: function(element) {
 			this.lastActive = element;
@@ -305,7 +306,9 @@
 		checkForm: function() {
 			this.prepareForm();
 			for ( var i = 0, elements = (this.currentElements = this.elements()); elements[i]; i++ ) {
-				this.check( elements[i] );
+                if (this.settings.validateHidden || $(elements[i]).parents().filter(':hidden').length == 0) {
+    				this.check( elements[i] );
+                }
 			}
 			return this.valid(); 
 		},