-var apply_regex = function(e) {
- console.debug( this, e );
- var r = new RegExp( this.value ,'i');
+var last_user_regex = '';
+
+var filter_regex = function(user_regex) {
+
+ if ( user_regex == '' || user_regex == last_user_regex ) return false;
+ last_user_regex = user_regex;
+
+ var r = new RegExp( user_regex,'i');