When you load a list jquery gets the properties of the first Li in UL _jquery

When you load a list, you want to select the first one by default. Top_menu is the UL ID

Through $ ("#top_menu Li:first") can get to the UL under the first Li tag. And then you can use

For example, modify attributes: $ ("#top_menu Li:first"). attr ("Class", "select");

Trigger Event: $ ("#top_menu Li:first"). Click ();

If you want to get a label under Li, as follows:

$ ("#top_menu Li:first a")

You can also modify the property: $ ("#top_menu li:first a"). attr ("", "");

Trigger Event: $ ("#top_menu li:first a"). Click ();

Copy Code code as follows:

<ul class= "nav white" id= "Top_menu" name= "Top_menu" >
<!--level menu-->
<s:iterator value= "list" status= "St" >
<li><a onclick= "" ><s:property value= "MenuName"/></a></li>
</s:iterator>
</ul>