Basic Change Style onClick Function - jQuery JavaScript

http://blog.kangrian.com

HTML

<button class="hitam" onclick="function()">Hitam</button> 
<button class="merah" onclick="function()">Merah</button> 
<button class="hijau" onclick="function()">Hijau</button> 

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http://blog.kangrian.com ( Place of "jQuery Tips & Tricks!" )

CSS

body { font-family:calibri;font-size:100%; }

JavaScript

$('.merah').click(function() {
     $('.hijau').css('background', '#cc0000');
     $('body').css('color', '#fff')
 });

$('.hijau').click(function() {
     $('body').css('background', 'green');
     $('body').css('color', '#fff')
 });