Selector question using find

Selector question using find

Hi.
I cant for the love of god find the correct selector syntax for selecting elements based on their names.

Here is the fuzz, i need to select all elements beginning with "video-", the element

for example:
Here is an example of my xml elements, contained in a variable called xml.
<video-270p/>
<video-360p/>
<video-720p/>

This would be my regex approach:
^video\-(\d){0,9}p


var video = $j(xml).find(wtf); <- help :)