var how_many_js = 6;
var now = new Date()
var sec = now.getSeconds()
var js1 = sec % how_many_js;
js1 +=1;
if (js1==1) {
url="/js/menu_pictures1.js";
}
if (js1==2) {
url="/js/menu_pictures2.js";
}
if (js1==3) {
url="/js/menu_pictures3.js";
}
if (js1==4) {
url="/js/menu_pictures4.js";
}
if (js1==5) {
url="/js/menu_pictures5.js";
}
if (js1==6) {
url="/js/menu_pictures6.js";
}
document.write("<script type='text/javascript' src='" + url + "'></SCRIPT>");