jVanilla 是一款菜单类的 jQuery 插件，可以将现有的纯 CSS 下拉菜单添加各种功能。包括：

• Animations when showing submenus
• Support one submenu level
• Timed delay on mouseout
• Top level menu links can be inactive (on hover effect)
• Last submenu right-aligned

用法:

$(document).ready(function (){      $('.menu-hover').jVanilla({          speed               : 50,       // speed in milliseconds                                           // of the opening animation          animation           : 'fading', // type of the animation                                           // fading || sliding          eventType           : 'hover',  // type of event that trigger                                          // animation hover || click          delay               : 100,      // the delay in milliseconds that                                           // the mouse can remain outside                                           // the submenu without it closing          isHoverClickable    : false,    // set to true if you want to enable                                           // the click on the first level link          isLastRightAlign    : true      // set to false if you want to align                                           // left the last submenu      });  });

项目主页：http://www.open-open.com/lib/view/home/1390465571836