var wie_viele = 7;
var now = new Date()
var sec = now.getSeconds()
var ad = sec % wie_viele;
ad +=1;

if (ad==1) {
link_url="";
banner_url="intro/buecher_v.jpg";
width="328";
height="400";
}

if (ad==2) {
link_url="";
banner_url="intro/fl_innen.jpg";
width="430";
height="1072";
}

if (ad==3) {
link_url="";
banner_url="intro/buecher07.jpg";
width="600";
height="410";
}

if (ad==4) {
link_url="";
banner_url="intro/epidem01.jpg";
width="600";
height="398";
}

if (ad==5) {
link_url="";
banner_url="intro/0708.jpg";
width="600";
height="602";
}

if (ad==6) {
link_url="";
banner_url="intro/epidem02.jpg";
width="438";
height="400";
}

if (ad==7) {
link_url="";
banner_url="intro/lokalnews.jpg";
width="600";
height="501";
}





function random1() {
document.write('<center>');
document.write('<a href="index1.html"' + link_url + '\" target="_blank">');
document.write('<img src=\"' + banner_url + '\" width=')
document.write(width + ' height=' + height + ' ');
document.write('border=0></a><br>');
document.write('</center>');
return
}