// --------------------------------- //
function checkWindow(){
 if(self.name!="bildprojekt"){
   var cachedPath = self.location.href;
   self.location = "../index.html";
   openMainWindow(cachedPath);
 }
}
// --------------------------------- //
function openMainWindow(winLink){
  if(!winLink){winLink='start.html'}
  var winLeft = (screen.width/2)-400;
  var winTop  = (screen.height/2)-300;
  var optString   = "scrollbars=no, width=800, height=600, left=" + winLeft + ", top=" + winTop + ",  resizable=no, dependent=yes, status=no";
  fenster = window.open(winLink, 'bildprojekt', optString);
  return false;
}

// --------------------------------- //
function openVideoWindow(videoName){
  var winURL      = "videos/" + videoName + ".html";
  var optString   = "scrollbars=no, width=328, height=257, left=0, top=0, resizable=no, dependent=yes, status=no";
  videoWindow = window.open(winURL,'bildprojekt_video', optString);
  return false;
}
// --------------------------------- //
function openImageWindow(imageName){
  var winURL      = "bilder/" + imageName + ".html";
  var leftSnap    = screen.width - 445;
  var optString   = "scrollbars=no, width=431, height=361, left=" + leftSnap + ", top=0, resizable=no, dependent=yes, status=no";
  imageWindow = window.open(winURL,'bildprojekt_image', optString);
  return false;
}
// --------------------------------- //
function openLocationWindow(){
  var winURL      = "anfahrt.html";
  var leftSnap    = screen.width - 420;
  var topSnap     = screen.height - 520
  var optString   = "scrollbars=no, width=380, height=480, left=" + leftSnap + ", top=" + topSnap + ", resizable=no, dependent=yes, status=no";
  locationWindow = window.open(winURL,'bildprojekt_location', optString);
  return false;
}
// --------------------------------- //
function formcheck(){
  myform = document.kontakt;
  my_err = "";

  if(myform.realname.value == ""){
    my_err = my_err + "- Name\n";
  }
  if(myform.subject.value == ""){
    my_err = my_err + "- Betreff\n";
  }
  if(myform.email.value == ""){
    my_err = my_err + "- E-Mail-Absenderadresse\n";
  }
  if(myform.message.value == ""){
    my_err = my_err + "- Text der E-Mail\n";
  }

  if(my_err==""){
    return true;
  }else{
    err_str = "Folgende Felder MÜSSEN ausgefüllt werden:\n\n" + my_err + "\nBitte vervollständigen Sie Ihre Angaben!";
    alert(err_str);
    return false;
  }
}
// --------------------------------- //