// link im neuen Fenster
function ct(obj) {
  obj.target = '_blank';
}


// Popup Fenster
function PopUp(w,h,ziel) {
  h = h - 20; var x=0, y=0, parameter="";
  if (w < screen.availWidth || h < screen.availHeight) {
    x = (screen.availWidth - w - 12) / 2;
    y = (screen.availHeight - h - 104) / 2;
    if (window.opera) y = 0; // Opera positioniert unter den Symbolleisten
    if (x<0 || y<0) { x=0; y=0; }
    else parameter = "width=" + w + ",height=" + h + ",";
  }
  parameter += "left=" + x + ",top=" + y;
  parameter += ",menubar=no,location=no,toolbar=no,status=no";
  parameter += ",resizable=no,scrollbars=yes";
  var Fenster = window.open(ziel,"PopUp",parameter);
  if (Fenster) Fenster.focus();
  return !Fenster;
}

// Formular check
function chkFormular()
{ 
 if((document.kontakt_form.name_feld.value == "" )|| !(document.kontakt_form.name_feld.value.match(/\D.*/))){
   alert("Bitte Ihren Namen eingeben!");
   document.kontakt_form.name_feld.focus();
   return false;
  }
   
 if(document.kontakt_form.nachricht_feld.value == "") {
   alert("Bitte Ihre Nachricht eingeben!");
   document.kontakt_form.nachricht_feld.focus();
   return false;
  }
}