function openimpressum()
{
popupWin = window.open('http://www.dehler.tv/impressum.html', 'Impressum', 'width=350,height=500,left=50,top=50');

}
function openimpressumdehler()
{
popupWin = window.open('http://www.dehler.tv/impressumdehler.html', 'Impressum', 'width=350,height=470,left=50,top=50');

}