Question

which javascript framework can be used for all browsers

Answer 1

Cross browser JavaScript frameworks: Browser support (from what i can discover pls update in comments)

• Prototype Internet Explorer (IE) 6 +, Firefix (FF) 1+, Safari 2+, Opera (o) 9.25+, Chrome (c) 1+
• script.aculo.us IE 6 +, FF 1+, S 2+, O 9.25+, c 1+
• jQuery IE 6 +, FF 2+, S 3+, O 9+, C 1+
• Yahoo! User Interface Library IE 6 +, FF 3+, S 3+, O 9+, C unknown
• MooTools IE 6 +, FF 1.5+, S 2+, O 9+, C unknown
• Ext JS IE 6 +, FF 1+, S 2+, O 9.25, C 1+
• moo.fx
• Rico
• Qooxdoo IE 6 +, FF 1.5+, S 3+, O 9+, C 1+
• The Dojo Toolkit IE 6 +, FF 2+, S 3.2+, O 9.6+, C 1+

I’ve used

• jQuery
• yUI

but I always go back to jQuery.

It worth pointing out that different frameworks have different strengths, so work out what you want and find the best framework for you.