Javascript funktioniert nicht im Child-Theme

/*
    Theme Name:     twentythirteen_child
    Theme URI:      [URL]http://huntinmotion.com/wp-content/themes/twentythirteen_child/[/URL]
    Description:    Child Theme for the twentythirteen theme
    Author:         Rabarber
    Author URI:     [URL]http://www.huntinmotion.com[/URL]
    Template:       twentythirteen
    Version:        0.1
*/


@import url('../twentythirteen/style.css');


/* GENERIC 
--------------------------------------------------------*/
h1 {font-size: 40px;}




/* ARTIKEL 
--------------------------------------------------------*/
.artikel h3{padding: 10px 0 10px 0; margin: 0;}
.artikel .subheadline {font-style: italic; color: #999; padding: 0; margin: 0 0 5px 0;}
.artikelbild.rechts{float: right; padding: 3px 0 1px 10px; }
.artikelbild.links{float: left; padding: 3px 10px 1px 0; }




.entry-content img.alignleft, .entry-content .wp-caption.alignleft {
    margin-left: 0;
}


/* FOOTER
--------------------------------------------------------*/
.site-info {min-height: 170px;}
.site-info .box_left{float: left;}
.site-info .box_right {float: right;}


/* Widgetleiste
--------------------------------------------------------*/
.smicon {padding-right: 10px;}


/* Sponsorenlogos
--------------------------------------------------------*/
.sponsor {
    float: left;
    margin: 20px;
    width: 250px;
}