右上角导航栏问题

app/views/layouts/_base_header.html.erb

@@ -101,10 +101,7 @@
 		addSlipMenu();
         addProjectSlipMenu ();
         addCourseSlipMenu();
-	});
+        $('.sub_menu').find("a").attr('target', '_blank');
-
-	jQuery(document).ready(function($) {
-		$('.sub_menu').find("a").attr('target', '_blank');
         $('.project_sub_menu').find("a").attr('target', '_blank');
         $('.course_sub_menu').find("a").attr('target', '_blank');
 	});

public/javascripts/header.js

@@ -1,11 +1,15 @@
 function addSlipMenu () {
-    var loggedas = $('#current_user_li:first');
+    var loggedas = $('#current_user_li a:first');
     var sub_menu = $('#user_sub_menu');
-    loggedas.mouseenter(function(event) {
+    loggedas.mouseenter(function() {
         sub_menu.show();
+        $('#my_projects_ul').hide();
+        $('#my_courses_ul').hide();
     });
-    sub_menu.mouseleave(function(event) {
+    sub_menu.mouseleave(function() {
         sub_menu.hide();
+        $('#my_projects_ul').hide();
+        $('#my_courses_ul').hide();
     });
 }
 
@@ -13,24 +17,26 @@ function addProjectSlipMenu () {
     var loggedas = $('#my_projects_li');
     var project_sub_menu = $('#my_projects_ul');
     var course_sub_menu = $('#my_courses_ul');
-    loggedas.mouseenter(function(event) {
+    loggedas.mouseenter(function() {
         course_sub_menu.hide();
         project_sub_menu.show();
     });
-    loggedas.mouseleave(function(event) {
+    loggedas.mouseleave(function() {
         project_sub_menu.hide();
+        course_sub_menu.hide();
     });
 }
 function addCourseSlipMenu () {
     var loggedas = $('#my_courses_li');
     var project_sub_menu = $('#my_projects_ul');
     var course_sub_menu = $('#my_courses_ul');
-    loggedas.mouseenter(function(event) {
+    loggedas.mouseenter(function() {
         project_sub_menu.hide();
         course_sub_menu.show();
     });
-    loggedas.mouseleave(function(event) {
+    loggedas.mouseleave(function() {
         course_sub_menu.hide();
+        project_sub_menu.hide();
     });
 }