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function f2(){
var oDiv = document.getElementById("d");
oDiv.attachEvent("onclick",fn);
oDiv.attachEvent("onclick",fn2);
}
function f3(){
var oDiv = document.getElementById("d");
oDiv.onclick = fn;
oDiv.attachEvent("onclick",fn2);
}
<script>
function a() {
alert("a");
}
function b() {
alert("b");
}
function c() {
alert("c");
}
function d() {
alert("d");
}
function e() {
alert("e");
}
function addEvent(obj, type, fn) {
if (obj.addEventListener) {
obj.addEventListener(type, fn, false);
return true;
} else if (obj.attachEvent) {
return obj.attachEvent("on" + type, fn);
} else {
return false;
}
}
addEvent(window, 'load', a);
addEvent(window, 'load', b);
addEvent(window, 'load', c);
addEvent(window, 'load', d);
addEvent(window, 'load', e);
</script>