增加了 jquery.tree 插件

htdocs/js/jquery.tree.js

@@ -0,0 +1,23 @@
+(function( $ ){
+
+  $.fn.tree = function(options) {
+	  
+		var defualts = {
+			'toggle':'.tree-toggle-btn',
+			'downImg':'/images/plus.gif',
+			'upImg':'/images/minus.gif'
+		};
+		
+        var opts = $.extend({}, defualts, options);  
+		
+		$(opts.toggle).addClass("tree-toggle-down");
+		
+		this.each(function() {
+			$(this).children('.expandable').each(function (){
+				$(this).children('.tree-toggle-btn').bind('click', function() {
+					$(this).parent().children('ul').slideToggle("slow");
+				});
+			});
+		});
+  };
+})( jQuery );