//var j = jQuery.noConflict();
     window.onorientationchange = function() {
         orientChange();
     }

     function  orientChange(){
         var orientation = window.orientation;
         if (orientation == 0) {
           $('#horizon img').css('minHeight', '1024px');
         }
         if (orientation == 90 || orientation == -90) {
           $('#horizon img').css('minHeight', '768px');
         }
     }
	 orientChange();