Adding events to DOM Elements in javascript by For IE, Mozilla, Opera browsers

To add events to DOM element Dynamically using javascript needs to write dis=fferent code for different browsers. Browsers Like Mozilla, Opera support the "W3C DOM Level 2 event binding mechanism"  which uses a function on DOM elements called addEventListener.


 Following the way to  add events to DOM element Dynamically for all browser.


if (window.addEventListener != null)
{ // Method for browsers that support addEventListener, e.g. Firefox, Opera, Safari
window.addEventListener("focus", FocusFunction, true);
window.addEventListener("blur", FocusLostFunction, true);
}
else
{ // e.g. Internet Explorer (also would work on Opera)
window.attachEvent("onfocus", FocusFunction);
document.attachEvent("onfocusout", FocusLostFunction); //focusout only works on document in IE
}  


Hope this will help you guys........

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