Using jquery to change a div id -

i have html page with:

<div id="box-"></div>

how use jquery change (is append right word?) box- box-2353 2353, or whatever number, set in separate .txt file?

i've found solutions changing class, don't have option since it's coming rss feed , set id.

try (plain javascript):

document.getelementbyid('box-').id += getthenumber()

or jquery:

var $box = $('#box-') $box.attr('id', $box.attr('id') + getthenumber())

Brande