hi all , im new in Ext JS world . ExtJS gives wonderfull apperance . I want to ask about the Ext Core 3 speed and strength and jQuery 1.4.2 comparison . i looked at many articles that say bla bla bla... but , which is more powerfull? jQuery looks focus with their core library . Founder of jQuery library is also great people , and supported by greats peoples and microsoft . so i think i should use jquery to the core of ExtJS . but , i don't know really with the speed of both ... anyone know? please let me know , thanks all...