function impressum(url) {
OpenWin = open(url, "CtrlWindow", "toolbar=0,menubar=0,location=0,resizable=0,status=0,width=400,height=450,left=147,top=30,scrollbars");
}

function umfrage(url) {
OpenWin = open(url, "CtrlWindow", "toolbar=0,menubar=0,location=0,resizable=0,status=0,width=570,height=350,left=147,top=30,scrollbars");
}

function webmaster(url) {
OpenWin = open(url, "CtrlWindow", "toolbar=0,menubar=0,location=0,resizable=0,status=0,width=790,left=0,top=0,scrollbars");
}