return this.filter(":hidden").animate({opacity: "show"}, speed, callback).end(); 
return this.animate({opacity: "show"}, speed, callback); 
	fadeIn: function(speed, callback){		return this.filter(":hidden").animate({opacity: "show"}, speed, callback).end();	},
6056	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/6056/9b5363b9eb197515e31589894c945dfd70b8b93b/fx.js/clean/src/fx/fx.js