function registerFocusEffects(ele){
	Event.observe(ele, 'focus', function(){
			ele.className='onFocus';
			return true;
		});
	Event.observe(ele, 'blur', function(){
			ele.className='onBlur';
			return true;
		});
}
Event.observe(window, 'load', function(){
		var arrEle=$$('.onBlur');
		for(var i=0; i<arrEle.length; i++)
			registerFocusEffects(arrEle[i]);
		return true;
	});