Changing an ID using JQuery

I'm trying to change the ID of an element here:

http://moemonty.com/chirp/CHIRP-JSON-test.html

By using this line:

$('.databaseID').attr('id', 'test');

I woul开发者_如何学运维d like to change the id of this line to test, so I can proceed to put in a pre-fix via a string and a variable from JSON data. But for now, I just wanted to see if I could replace it with test at this line:

<li class="databaseID" id="np-44701">

Thanks in advance.

Yes, you can change the ID of an element with $().attr(). The code you give will work, but you should ensure that you only change one element:

$('li.databaseID:first').attr('id','test');

On the other hand, I'd urge you to think this through so you're sure that you really need to change the id of an element. I can't quite imagine the circumstance where it would be necessary.