window.addEvent('domready', function() { 

$$('.image .thumbs img').addEvents({
        'click': function()
        {
                var src = this.get('src');
                $$('.image img.mainimg').set('src', src);
				$$('.image .thumbs img').setStyle('opacity', '1');
				this.setStyle('opacity' , '0.5');
        }

}); 

});