Wait until HTML elements gets a class then do something

Question

I am waiting for the document.ready event in order to do something on my page.

Alas some other script, which I cannot change, has not worked its magic yet once my script

Answer 1

I'm sorry if I got your question wrong but why not just doing something plain as this on document.ready ? :

$("#myelement").addClass('myclass');

if($("#myelement").hasClass('myclass')) {
    alert('do stuff here');
}