Google Experiments Multi Variation Test jQuery switch

function do_experiment_1(){

    /* Ask Google Analytics which variation to show the user. */
    var chosenVariation = cxApi.chooseVariation();

    /* Define JavaScript for each page variation of this experiment. Using http://blog.crazyegg.com/2012/07/11/website-color-palettes/ */

    switch(chosenVariation) {

    case 1:
            /*  Variation 1: Mea Cuppa */

            /*  Widget background & text colour */
            jQuery(".wdpu-middle .WL_RegistrationWidget").attr("style", "border : 4px solid #FFF056 !Important;background-color: #DFE2DB;color:#191919;");
            jQuery(".wdpu-middle .WL_RegistrationWidget h2").attr("style", "color: #191919");
            /*  Button: normal */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
               'background-color'   : '#FFF056',
               'color'              : '#191919',
            });
            /*  Button: hover */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").hover(function(){
                jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css("background-color","#191919");
            });

        break;
    case 2:
            /* Variation 2:  Black & White */

            /* Widget background & text colour */
            jQuery(".wdpu-middle .WL_RegistrationWidget").attr("style", "border : 4px solid #000000 !Important;background-color: #F9F9F9;color:#000000;");
            jQuery(".wdpu-middle .WL_RegistrationWidget h2").attr("style", "color: #000000");
            /* Button: normal */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
               'background-color'   : '#000000',
               'color'              : '#FFFFFF',
            });
            /* Button: hover */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").hover(function() {
                jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
                   'background-color'   : '#424242',
                   'color'              : '#FFFFFF',
                });
            });

        break;
    case 3:
            /* Variation 3: NHS Blue + Darker button */

            /* Widget background & text colour */

            jQuery(".wdpu-middle .WL_RegistrationWidget").attr("style", "border : 4px solid #1572B8 !Important;background-color: #eaf6ff;color:#000000;");
            jQuery(".wdpu-middle .WL_RegistrationWidget h2").attr("style", "color: #1572B8");
            /* Button: normal */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
               'background-color'   : '#1572B8',
               'color'              : '#FFFFFF',
            });
            /* Button: hover */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").hover(function() {
                jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
                   'background-color'   : '#0c4e7c',
                   'color'              : '#FFFFFF',
                });
            });

        break;
    case 4:
            /* Variation 4: John Lewis Green  */

            /* Widget background & text colour */
            jQuery(".wdpu-middle .WL_RegistrationWidget").attr("style", "border : 4px solid #163E00 !Important;background-color: #e0ffce;color:#000000;");
            jQuery(".wdpu-middle .WL_RegistrationWidget h2").attr("style", "color: #163E00");
            /* Button: normal */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
               'background-color'   : '#163E00',
               'color'              : '#FFFFFF',
            });
            /* Button: hover */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").hover(function() {
                jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
                   'background-color'   : '#010500', /* darker button on hover */
                   'color'              : '#FFFFFF',
                });
            });

        break;
    case 5:
            /* Variation 5: The Big Top - Orange */

            /* Widget background & text colour */

            jQuery(".wdpu-middle .WL_RegistrationWidget").attr("style", "border : 4px solid #C63D0F !Important;background-color: #FDF3E7;color:#3B3738;");
            jQuery(".wdpu-middle .WL_RegistrationWidget h2").attr("style", "color: #C63D0F");
            /* Button: normal */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
               'background-color'   : '#C63D0F',
               'color'              : '#FFFFFF',
            });
            /* Button: hover */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").hover(function() {
                jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
                   'background-color'   : '#7E8F7C',
                   'color'              : '#FFFFFF',
                });
            });

        break;
    case 6:
            /* Variation 6:  Lemon Stand App - Yellow bg + Red Button */

            /* Widget background & text colour */
            jQuery(".wdpu-middle .WL_RegistrationWidget").attr("style", "border : 4px solid #6DBDD6 !Important;background-color: #FFE658;color:#404040;");
            jQuery(".wdpu-middle .WL_RegistrationWidget h2").attr("style", "color: #6DBDD6");
            /* Button: normal */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
               'background-color'   : '#B71427',
               'color'              : '#FFFFFF',
            });
            /* Button: hover */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").hover(function() {
                jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
                   'background-color'   : '#404040',
                   'color'              : '#FFFFFF',
                });
            });

        break;
    case 7:
            /* Variation 7: Tori’s Eye ( Greens) */

            /* Widget background & text colour */
            jQuery(".wdpu-middle .WL_RegistrationWidget").attr("style", "border : 4px solid #005A31 !Important;background-color: #F3FAB6;color:#000000;");
            jQuery(".wdpu-middle .WL_RegistrationWidget h2").attr("style", "color: #005A31");
            /* Button: normal */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
               'background-color'   : '#005A31',
               'color'              : '#FFFFFF',
            });
            /* Button: hover */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").hover(function() {
                jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
                   'background-color'   : '#A8CD1B',
                   'color'              : '#FFFFFF',
                });
            });

        break;
    case 8:
            jQuery(".wdpu-middle .WL_RegistrationWidget").attr("style", "border : 4px solid #000000 !Important;background-color: #F9F9F9;color:#000000;");
            jQuery(".wdpu-middle .WL_RegistrationWidget h2").attr("style", "color: #000000");
            /* Button: normal */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
               'background-color'   : '#000000',
               'color'              : '#FFFFFF',
            });
            /* Button: hover */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").hover(function() {
                jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
                   'background-color'   : '#424242',
                   'color'              : '#FFFFFF',
                });
            });

        break;
    case 9:
            /* Variation 9: Cheese Survival Kit - Dark + Red */

            /* Widget background & text colour */
            jQuery(".wdpu-middle .WL_RegistrationWidget").attr("style", "border : 4px solid #DE1B1B !Important;background-color: #F6F6F6;color:#000000;");
            jQuery(".wdpu-middle .WL_RegistrationWidget h2").attr("style", "color: #DE1B1B");
            /* Button: normal */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
               'background-color'   : '#DE1B1B',
               'color'              : '#FFFFFF',
            });
            /* Button: hover */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").hover(function() {
                jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
                   'background-color'   : '#2B2B2B',
                   'color'              : '#FFFFFF',
                });
            });

        break;
    case 10:
            /* Variation 10: Nordic Ruby - Purple & Blue */

            /* Widget background & text colour */
            jQuery(".wdpu-middle .WL_RegistrationWidget").attr("style", "border : 4px solid #7D1935 !Important;background-color: #F5F3EE;color:#000000;");
            jQuery(".wdpu-middle .WL_RegistrationWidget h2").attr("style", "color: #7D1935");
            /* Button: normal */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
               'background-color'   : '#4A96AD',
               'color'              : '#FFFFFF',
            });
            /* Button: hover */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").hover(function() {
                jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
                   'background-color'   : '#7D1935',
                   'color'              : '#FFFFFF',
                });
            });

        break;
    case 11:
            /* Variation 11: Odopod - Pink & Off Black */

            /* Widget background & text colour */
            jQuery(".wdpu-middle .WL_RegistrationWidget").attr("style", "border : 4px solid #DF3D82 !Important;background-color: #FFFFFF;color:#191919;");
            jQuery(".wdpu-middle .WL_RegistrationWidget h2").attr("style", "color: #DF3D82");
            /* Button: normal */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
               'background-color'   : '#DF3D82',
               'color'              : '#FFFFFF',
            });
            /* Button: hover */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").hover(function() {
                jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
                   'background-color'   : '#191919',
                   'color'              : '#FFFFFF',
                });
            });

        break;
    case 12:
            /* Variation 12: eBay Blue */

            /* Widget background & text colour */
            jQuery(".wdpu-middle .WL_RegistrationWidget").attr("style", "border : 4px solid #00539F !Important;background-color: #F9F9F9;color:#555555;");
            jQuery(".wdpu-middle .WL_RegistrationWidget h2").attr("style", "color: #00539F");
            /* Button: normal */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
               'background-color'   : '#00509d',
               'color'              : '#FFFFFF',
            });
            /* Button: hover */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").hover(function() {
                jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
                   'background-color'   : '#00539F',
                   'color'              : '#FFFFFF',
                });
            });

        break;
    case 13:
            /* Variation 13: Amazon - White/Grey/Yellow */

            /* Widget background & text colour */
            jQuery(".wdpu-middle .WL_RegistrationWidget").attr("style", "border : 4px solid #F0C250 !Important;background-color: #FFFFFF;color:#333333;");
            jQuery(".wdpu-middle .WL_RegistrationWidget h2").attr("style", "color: #F0C250");
            /* Button: normal */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
               'background-color'   : '#F0C250',
               'color'              : '#333333',
            });
            /* Button: hover */
            jQuery(".wdpu-middle .WL_RegistrationWidget #submit").hover(function() {
                jQuery(".wdpu-middle .WL_RegistrationWidget #submit").css({
                   'background-color'   : '#d6ab48',
                   'color'              : '#333333',
                });
            });
        break;
    } // /switch

} // /do_experiment_1