Can't find a solution in the Lessons
Requirements::javascript($this->ThemeDir()."/js/script.js");
Requirements::javascript($this->ThemeDir()."/js/jquery.backstretch.min.js");
$('.homepage-jumbo').backstretch([
"$ThemeDir/images/loginbackground.jpg",
"$ThemeDir/images/test1.jpg",
"$ThemeDir/images/test2.jpg"
], {
fade: 750,
duration: 4000
});