Something

// addEvent(window,'load',func1,false);
// addEvent(window,'load',func2,false);
// addEvent(window,'load',func3,false);

// ADD EVENT TO ELEMENT

function addEvent(elm, evType, fn, useCapture) {
        if (elm.addEventListener) {
                elm.addEventListener(evType, fn, useCapture);
                return true;
        }
        else if (elm.attachEvent) {
                var r = elm.attachEvent('on' + evType, fn);
                return r;
        }
        else {
                elm['on' + evType] = fn;
        }
}