function shop(SHOPID)
{
var b = '600';
var h = '550';
var n = 'prsh';
var s = 'http://www.printshopping24.de/shop.php?shop_id=' + SHOPID;
var se = (screen.availWidth - b) / 2;
var oben = (screen.availHeight - h) / 2;
par = ('width='+ b +',height='+ h +',left='+ se +',top='+ oben + ',scrollbars=yes');
window.open(s,n,par);
}