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();
	    });
	};