Most of the developer who working in MS platform will be used to the javascript window.attachEvent.
But maybe some of you don’t know that window.attachEvent is only working on IE7+ and Opera only. Your coding will hit an javascrpit error when running at IE 6 or any version of firefox.
To resolve this issue, you may need to modify your code as such:
Original Code:
window.attachEvent(“onload”, Page_load);
function Page_load(){
//function code
}
Modify code:
//set page event handlers
if (window.attachEvent) {
//IE and Opera
window.attachEvent(“onload”, Page_load);
} else if (window.addEventListener) {
// IE 6
window.addEventListener(“load”, Page_Unload, false);
} else {
//FireFox
document.addEventListener(“load”, Page_Unload, false);
}
function Page_load(){
//function code
}
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