jquery toggle

    $(function() {
        $("#go").toggle(
            function() {$("#test").css("position","absolute").animate({width: 150}, 2000);},
            function() {$("#test").css("position","absolute").animate({width: 300}, 2000);}
        );
    });



    $(function() {
        $("#go").toggle(
            function() {$("#test").animate({opacity: 0}, 2000, function(){console.log("hi there");});},
            function() {$("#test").animate({opacity: 1}, 2000);}
        );
    });


    $(function() {
        $("#go").toggle(
            function() {$("#test").animate({width: $("#test").width() + 50}, 2000, function(){console.log("hi there");});},
            function() {$("#test").animate({width: $("#test").width() - 50}, 2000);}
        );
    });