addLoadEvent (initConfirm);

function initConfirm() {
    var as = document.getElementsByTagName('a');
    for (var i = 0; i < as.length; i++) {
        if (as[i].className.indexOf('confirmMsg') != -1){
            as[i].onclick = function() {
                var rel = this.getAttribute('rel');
                if (rel) return confirm(rel); 
                else return confirm('Usunąć element?');
            }
        }
    }
}