require(["dojo/on","dojo/_base/array"],function(on,array){
    on(dojo.doc,"DOMNodeInserted",function(evt){
        var classes = dojo.attr(evt.target,"class").split(" ");
        if (array.indexOf(classes,"myclass") > -1) {
            console.debug("Inserted node with class myclass",evt.target);
        }
    });
});