jQuery addClass to a tag problem

I have this in my html code:

<ul id="navlist"
<li id="tabItem1"><a href="#">Item one</a></li>
<li id="tabItem2"><a 开发者_C百科href="#">Item two</a></li>
<li id="tabItem3"><a href="#">Item three</a></li>
<li id="tabItem4"><a href="#">Item four</a></li>
</ul>

I want to add a class to the a element with jquery like this: (its not working)

var currentTab = 1;

$(document).ready(function()
{        
  $("li#tabItem" + currentTab + ":has(a)").addClass("navlistHover");
  //console.log("li#tabItem" + currentTab + ":has(a)");
});

When a delete the a element and do it like the next example, than there is no problem.

$("li#tabItem" + currentTab).addClass("navlistHover");

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I've tried the following code:

$('navlist li#tabItem' + currentTab + ' a').addClass('navlistHover');

but it's not working, very strange

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Try this:

$('navlist li#tabItem' + currentTab + ' a').addClass('navlistHover');

The :has() selector selects items that have the a element as children:

http://docs.jquery.com/Selectors/has

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It's working if you add the html closing tag for

<ul id="navlist">