JS fix for when there are no invalid pages and user clicks revalidate invalid....

JS fix for when there are no invalid pages and user clicks revalidate invalid. Also validate unknown pages.

www/js/batchval.js

@@ -27,9 +27,11 @@ function validateAll()
 function validateInvalid() {
 	//scroll to first Invalid
 	var falseDiv = WDN.jQuery(".false:first").offset();
+	if (falseDiv) {
 		window.scroll(0, falseDiv.top);
+	}
 
-	WDN.jQuery('.false .uri').each(function(){
+	WDN.jQuery('.false .uri, .unknown .uri').each(function(){
 		// Grab the URI
 		var uri = WDN.jQuery(this).html();
 		var uriDiv = WDN.jQuery(this).parent();