jquery - disable click

assuming your using click events, just unbind that one.

example

if (current = 1){ 
    $('li:eq(2)').unbind("click");
}

EDIT: Are you currently binding a click event to your list somewhere? Based on your comment above, I'm wondering if this is really what you're doing? How are you enabling the click? Is it just an anchor(<a> tag) ? A little more explicit information will help us answer your question.

UPDATE:

Did some playing around with the :eq() operator. http://jsfiddle.net/ehudokai/VRGfS/5/

As I should have expected it is a 0 based index operator. So if you want to turn of the second element in your selection, where your selection is

$("#navigation a")

you would simply add :eq(1) (the second index) and then .unbind("click") So:

if(current == 1){
    $("#navigation a:eq(1)").unbind("click");
}

Ought to do the trick.

Hope this helps!

Raw Javascript can accomplish the same thing pretty quickly also:

document.getElementById("myElement").onclick = function() { return false; } 

If you're using jQuery versions 1.4.3+:

$('selector').click(false);

If not:

$('selector').click(function(){return false;});