$(document).ready(function(){
var timer;
jQuery(function($) {
       timer = setTimeout(Promocja, 0);
});
function Promocja(){
$("#promocje").animate({"backgroundColor": "#FF1800"}, 1000).animate({"backgroundColor": "#FDB210"}, 1000).animate({"backgroundColor": "#7D0707"}, 1000).animate({"backgroundColor": "#FF1800"}, 1000,function() {
                       timer = setTimeout(Promocja, 0);
                });
}

});