SO fiddle

Test Fiddle mainly for SO Questions

by Nick Craver

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/overcast/jquery-ui.css">
 <form id="form1" runat="server">


        <div id="multiDropMenu">
            <ul id="menu">
                <li><a href="#" id="places">Places</a>
                    <ul id="dropdown1">
                        <li><a href="http://google.com">To Go</a></li>
                        <li><a href="#">To See</a></li>
                    </ul>
                </li>
                <li><a href="#">Transportation</a></li>
            </ul>
        </div>

    </form>

CSS

#dropdown1 { display: none; }

JavaScript

$(function() {
       $("#menu li").hover(function() { 
          $(this).find("ul").slideToggle("fast"); 
       });
});