var PreloadFlag = false;
var baseURL = 'http://www.mishpics.com/images/';
if (document.images) {
	vacationTrailer = new Image(); vacationTrailer.src = baseURL + "vacationTrailer-on.jpg";
	PreloadFlag = true;
}
function changeImg(state) {
    if (document.images && PreloadFlag) {
        document['vacationTrailer'].src = baseURL + 'vacationTrailer' + state + '.jpg';
    }
}