JQuery :: How To Link To Specific Tab

We use for a project the following code for tab navigation. Now the client wants to link directly to a specific tab from outside (for example to tab 3). Is it possible to modify this code with less work or I have to switch to Jquery UI Tabs and build it up again?

/* - TAB SWITCH - */
$(document).ready(function() {
$(".tab_content").hide(); //Hide all content
$("ul.tabs li:first").addClass("active").show(); //Activate first tab
$(".tab_content:first").show(); //Show first tab content
$("ul.tabs li").click(function() {
$("ul.tabs li").removeClass("aktiv"); //Remove any "active" class
$(this).addClass("aktiv"); //Add "active" class to selected tab
$(".tab_content").hide(); //Hide all tab content
var activeTab = $(this).find("a").attr("href"); //Find the rel attribute value to identify the active tab + content
$(activeTab).fadeIn(); //Fade in the active content
return false;
});
});

And in the html:
<ul class="tabs">
<li class="aktiv"><a href="#tab1"><span>Tab 1</span></a></li>
<li><a href="#tab2"><span>Tab 2</span></a></li>
<li><a href="#tab3"><span>Tab 3</span></a></li>
<li><a href="#tab4"><span>Tab 4</span></a></li>
</ul>
<div id="inhalt">
<div id="tab1" class="tab_content text"> .....