function telsex(url) {
  newwin = window.open(url,'fenster_telsex','width=300,height=272');
  newwin.focus();
  newwin.opener = self;
}

function smschat(url) {
  newwin = window.open(url,'fenster_sms','width=200,height=620');
  newwin.focus();
  newwin.opener = self;
}

function senderpopup(url) {
  newwin = window.open(url,'fenster_sender','width=638,height=478,resizable=no');  newwin.focus();
  newwin.opener = self;
}

function galeriepopup(url) {
  newwin = window.open(url,'fenster_sender','width=638,height=478,resizable=no');  newwin.focus();
  newwin.opener = self;
}

function changePreview(pic)
{
  document.getElementById('previewPic').src = pic;
}