retrieve ID of server control using jQuery

Question

How do I get the ID of a server control with jQuery?

E.g. I have

a

Answer 1

Labels render as span tags. So if you want to select all the Labels:

    $(document).ready(function()
    {
        $Labels = $("span");

        $Labels.each(function()
        {
            alert(this.id); 
        });
    });