Finding matched classname in jQuery

Question

I have a series of image thumbnails in a page. They are created using css sprites.

Answer 1

As far as I know, you're going to need a pretty basic regular expression, like so:

$("[class^=galleryImg]").click(function(Event) {
    var id = this.className.match(/galleryImg(\d+)/)[1];
    console.log(id);
});

If you're particularly averse to this, though, you can use something like this, which won't validate but will Get The Job Done.

Since I am assuming you have full control over your HTML and you know that galleryImg class will always be followed by the ID I don't think a regular expression here is evil at all. Just go with it!