diff --git a/javascript/SelectionGroup.js b/javascript/SelectionGroup.js
index 8949b4595..2508de5b9 100755
--- a/javascript/SelectionGroup.js
+++ b/javascript/SelectionGroup.js
@@ -1,27 +1,13 @@
 (function($) {
 $(document).ready(function() {
 	$('ul.SelectionGroup input.selector').livequery('click', function(){
-		var prnt = this.parentNodeWithTag('ul');
-		var li = this.parentNodeWithTag('li');
-		var i, item, allItems = prnt.childNodes;
-		for(i=0;item=allItems[i];i++) if(item.tagName) {
-			if(item == li) {
-				Element.addClassName(item, 'selected')
-			} else {
-				Element.removeClassName(item, 'selected')
-			}
-		}
+		var li = $(this).parent('li')
+		li.addClass('selected');
+		
+		var prev = li.prevAll('li.selected');
+		if(prev.length) prev.removeClass('selected');
+		var next = li.prevAll('li.selected');
+		if(next.length) next.removeClass('selected');
 	});
 })
 })(jQuery);
-
-SelectionGroupSelector = Class.create();
-SelectionGroupSelector.prototype = {
-	parentNodeWithTag: function(tagName){
-		var el = this.parentNode;
-		while(el.parentNode && el.tagName.toLowerCase() != tagName) el = el.parentNode;
-		return el;
-	}
-}
-
-SelectionGroupSelector.applyTo('ul.SelectionGroup input.selector');
\ No newline at end of file