jQuery.fn.fadeIn = function(speed, callback) { 
		return this.animate({opacity: 'show'}, speed, function() { 
			if (jQuery.browser.msie)  
				this.style.removeAttribute('filter');  
			if (typeof callback == 'function')  
				callback();  
		}); 
	}; 
	 
	jQuery.fn.fadeOut = function(speed, callback) { 
		return this.animate({opacity: 'hide'}, speed, function() { 
			if (jQuery.browser.msie)  
				this.style.removeAttribute('filter');  
			if (typeof callback == 'function')  
				callback();  
		}); 
	}; 
	 
	jQuery.fn.fadeTo = function(speed,to,callback) { 
		return this.animate({opacity: to}, speed, function() { 
			if (to == 1 && jQuery.browser.msie)  
				this.style.removeAttribute('filter');  
			if (typeof callback == 'function')  
				callback();  
		}); 
	};