$(document).ready(function() { 
	$("#main img").hover(
          function(){this.src = this.src.replace("-off","-on");},
          function(){this.src = this.src.replace("-on","-off");
     });
	 var imgSwap = [];
	 $("#main img").each(function(){
		imgUrl = this.src.replace("-off","-on");
		imgSwap.push(imgUrl);
	});
	$(imgSwap).preload();
});
$.fn.preload = function() {
    this.each(function(){
        $('<img/>')[0].src = this;
    });

(function($){

    $.fn.shuffle = function() {

        var allElems = this.get(),
            getRandom = function(max) {
                return Math.floor(Math.random() * max);
            },
            shuffled = $.map(allElems, function(){
                var random = getRandom(allElems.length),
                    randEl = $(allElems[random]).clone(true)[0];
                allElems.splice(random, 1);
                return randEl;
           });

        this.each(function(i){
            $(this).replaceWith($(shuffled[i]));
        });

        return $(shuffled);

    };

})(jQuery);

$(function() {

    $("#post-9 img").shuffle();

});

function preload(arrayOfImages) {
    $(arrayOfImages).each(function(){
        $('<img/>')[0].src = this;
        // Alternatively you could use:
        // (new Image()).src = this;
    });
}

// Usage:

preload([
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-aktuellt-line-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-aktuellt-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-cfa-line-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-cfa-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-kalender-line-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-kalender-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-kontakt-line-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-kontakt-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-logo-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-omoss-line-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-omoss-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-press-line-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-press-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-produktion-line-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-produktion-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-news-line-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-news-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-cfta-line-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-cfta-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-calendar-line-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-calendar-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-contact-line-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-contact-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-aboutus-line-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-aboutus-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-production-line-on.png',
    'http://www.kistateater.com/wp-content/themes/kistateater/images/nav-production-on.png'
]);



}