JQuery :: Retrieving Nested XML Nodes And Binding To OnClick Events

I have created two onClick events that i need to combine into one with jQuery. I have an unordered list:

Code:

<ul id="coverTabs">
<li class="currentTab"><a href="#">Individual</a></li>
<li><a href="#">Couple</a></li>

[code].....

So the active tab is set in the HTML to Individual by default.The following jQuery sets the active depending on which one is clicked.

Code:

$('ul#coverTabs > li').live('click', function() {
// Clickable tabs
// Removes default class applied in HTML and onClick adds 'currentTab' class

[code]....

what i want to achieve is when a user clicks a tab we call the XML document. The appropriate tab name is fetched and subsequently when a user clicks on a column under that tab the appropriate level cost data is displayed on the page.