function setcss() {
if (screen.height == 768) {
document.write("<link rel=stylesheet type=text/css href=http://www.mp-artware.de/fileadmin/template/css/styles_top.css />");
}
if (screen.height > 768) {
document.write("<link rel=stylesheet type=text/css href=http://www.mp-artware.de/fileadmin/template/css/styles.css />");
}
if (screen.height < 768) {
document.write("<link rel=stylesheet type=text/css href=http://www.mp-artware.de/fileadmin/template/css/styles_top.css />");
}
}