jQuery.fn.slideFadeToggle = function(speed, easing, callback) {
return this.animate({opacity: 'toggle', height: 'toggle'}, speed, easing, callback);  
};
 jQuery.fn.blindToggle = function(speed, easing, callback) {
   var h = this.height() + parseInt(this.css('paddingTop')) + parseInt(this.css('paddingBottom'));
    return this.animate({marginTop: parseInt(this.css('marginTop')) <0 ? 0 : -h}, speed, easing, callback);  
};