[javascript] get jquery `$(this)` id

How can I get the id of the element that triggered the jQuery .change() function? The function itself works properly, but I need a specific action for a selector with id="next".

$("select").change(function() {
    [...snip....]
    alert( $(this).attr('id') );  // <---- not working
}

Any ideas why the alert above isn't working?

Do you mean that for a select element with an id of "next" you need to perform some specific script?

$("#next").change(function(){
    //enter code here
});