twitter bootstrap - jQuery solution for keeping Dropdown submenu inside screen -


i using bootstrap dropdown menu. has problem,

if dropdown menu have multilevel submenu shows off screen, , bottom scroll bar appear.

how keep submenu inside screen, need jquery solution.

check screenshot

dropdown

here playground:

http://jsfiddle.net/howtoplease/svlkn/

here dropdown html

<div class="navbar navbar-fixed-top">   <div class="navbar-inner">       <div class="container-fluid">         <div class="nav-collapse">           <ul class="nav">             <li class="active"><a href="#">home</a></li>             <li><a href="#">link</a></li>             <li><a href="#">link</a></li>             <li><a href="#">link</a></li>             <li class="dropdown">               <a data-toggle="dropdown" class="dropdown-toggle" href="#">dropdown <b class="caret"></b></a>               <ul class="dropdown-menu">                 <li>                     <a href="#">2-level dropdown <i class="icon-arrow-right"></i></a>                     <ul class="dropdown-menu sub-menu">                         <li><a href="#">action</a></li>                         <li><a href="#">another action</a></li>                         <li><a href="#">something else here</a></li>                         <li class="divider"></li>                         <li class="nav-header">nav header</li>                         <li><a href="#">separated link</a></li>                         <li><a href="#">one more separated link</a></li>                     </ul>                 </li>                 <li><a href="#">another action</a></li>                 <li><a href="#">something else here</a></li>                 <li class="divider"></li>                 <li class="nav-header">nav header</li>                 <li><a href="#">separated link</a></li>                 <li><a href="#">one more separated link</a></li>               </ul>             </li>           </ul>                  </div><!-- /.nav-collapse -->       </div>   </div> </div>

how this: checks see if sub menu going overflow , modifies it's position width of sub menu it's on other side

$('.sub-menu').parent().hover(function() {     var menu = $(this).find("ul");     var menupos = $(menu).offset();      if (menupos.left + menu.width() > $(window).width()) {         var newpos = -$(menu).width();         menu.css({ left: newpos });         } });

http://jsfiddle.net/svlkn/4/


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