My HTML structure is like this:
Some content
Some content
<
Ever thought about using jQuery UI Sortable ?
Simply do:
$('#1').before($('#2'));
You can use .insertBefore(), like this:
$("#2").insertBefore("#1");
Or, .prependTo(), like this:
$("#2").prependTo("#parent");
...or the reverse using #1
and .insertAfter() and .appendTo()...or several other ways actually, it just depends what you're actually after, the above 2 methods should be about the shortest possible though, given 2 IDs.
I'm assuming this is just an example, remember to use IDs that don't start with a number in an actual HTML4 page, they're invalid and cause several issues.