jQuery dropdown menu modification
<p>I currently have a jQuery dropdown menu</p>

<p>HTML</p>

<pre><code>   &lt;ul class="topnav"&gt;


      &lt;li&gt; &lt;a href="/xyz"&gt;Main Category 1&lt;/a&gt;
         &lt;ul class="subnav"&gt;
       &lt;li&gt;&lt;a href="/1"&gt;Section 1&lt;/a&gt;&lt;/li&gt;
       &lt;li&gt;&lt;a href="/2"&gt;Section 2&lt;/a&gt;&lt;/li&gt;
       &lt;li&gt;&lt;a href="/3.php"&gt;Section 3&lt;/a&gt;&lt;/li&gt;
       &lt;/ul&gt;
       &lt;/li&gt;

       &lt;li&gt; &lt;a href="/xyx"&gt;Main Category 2&lt;/a&gt;
         &lt;ul class="subnav"&gt;
       &lt;li&gt;&lt;a href="/1"&gt;Section 1&lt;/a&gt;&lt;/li&gt;
       &lt;li&gt;&lt;a href="/2"&gt;Section 2&lt;/a&gt;&lt;/li&gt;
       &lt;li&gt;&lt;a href="/3.php"&gt;Section 3&lt;/a&gt;&lt;/li&gt;
       &lt;/ul&gt;
       &lt;/li&gt;

&lt;/ul&gt;
</code></pre>

<p>Javascript</p>

<pre><code> $(document).ready(function(){

$("ul.subnav").parent().append("&lt;span&gt;&lt;/span&gt;"); //Only shows drop down trigger when js is enabled (Adds empty span tag after ul.subnav*)


$("ul.topnav li span").click(function() { //When trigger is clicked...

    //Following events are applied to the subnav itself (moving subnav up and down)
    $(this).parent().find("ul.subnav").slideDown('fast').show(); //Drop down the subnav on click

    $(this).parent().hover(function() {
    }, function(){
        $(this).parent().find("ul.subnav").slideUp('slow'); //When the mouse hovers out of the subnav, move it back up
    });

    //Following events are applied to the trigger (Hover events for the trigger)
    }).hover(function() {
        $(this).addClass("subhover"); //On hover over, add class "subhover"
    }, function(){  //On Hover Out
        $(this).removeClass("subhover"); //On hover out, remove class     "subhover"
});
});
</code></pre>

<p>CSS</p>

<pre><code>          ul.topnav {
                    list-style: none;
                    padding: 0 0px;
                    margin: 19px 0 19px 100px;
                    float: left;
                    font-size: 1.4em;
                    width: 790px;
                    font-size: 1.2em;

                }
                ul.topnav li {
                    float: left;
                    margin: 0 3px;
                    padding: 0 15px 0 5px;
                    position: relative; /*--Declare X and Y axis base for sub navigation--*/
                    background: url(topnav_bg.gif) repeat-x;
                }
                ul.topnav li a{
                    padding: 10px 5px;
                    color: #fff;
                    display: block;
                    text-decoration: none;
                    float: left;
                }
                ul.topnav li a:hover{
                    background: url(topnav_hover.gif) no-repeat center top;
                }
                ul.topnav li span { /*--Drop down trigger styles--*/
                    width: 17px;
                    height: 35px;
                    float: left;
                    background: url(subnav_btn.gif) no-repeat center top;
                }
                ul.topnav li span.subhover {background-position: center bottom; cursor: pointer;} /*--Hover effect for trigger--*/
                ul.topnav li ul.subnav {
                    list-style: none;
                    position: absolute; /*--Important - Keeps subnav from affecting main navigation flow--*/
                    left: 0; top: 35px;
                    background: #333;
                    margin: 0; padding: 0;
                    display: none;
                    float: left;
                    width: 170px;
                    border: 1px solid #111;
                }
                ul.topnav li ul.subnav li{
                    margin: 0; padding: 0;
                    border-top: 1px solid #252525; /*--Create bevel effect--*/
                    border-bottom: 1px solid #444; /*--Create bevel effect--*/
                    clear: both;
                    width: 170px;
                }
                html ul.topnav li ul.subnav li a {
                    float: left;
                    width: 145px;
                    background: #333 url(dropdown_linkbg.gif) no-repeat 10px center;
                    padding-left: 20px;
                }
                html ul.topnav li ul.subnav li a:hover { /*--Hover effect for subnav links--*/
                    background: #222 url(dropdown_linkbg.gif) no-repeat 10px center;
                }
</code></pre>

<p>At present, the menu is triggered by clicking on a specific icon, a down arrow that appears next to the main category name. Clicking on the main category name itself, goes to its link. </p>

<p>I've tried with no success, but how could I modify this menu, so hovering over the main category also triggers the drop down, rather than only hovering over the down arrow?</p>

<p>Thanks in advance</p>
