function click(evt) { 
if (1==1) return true
if (navigator.appName.indexOf("Microsoft") != -1){ 
if (event.button==2) { 
alert('Copyright by www.das-klöppelnetz.de'); 
return false 
}; 
}; 
if (navigator.appName.indexOf("Netscape") != -1) { 
if ( evt.which == 3 ) { 
alert('Copyright by www.das-klöppelnetz.de'); 
return false 
}; 
}; 
}; 
if (navigator.appName.indexOf("Netscape") != -1) { 
document.captureEvents( Event.MOUSEDOWN ) 
}; 
document.onmousedown = click; 



function FensterOeffnen (Adresse,width,height) {
  Fenster1 = window.open(Adresse, "Zweitfenster", "width="+width+",height="+height+",left=50,top=50");
  Fenster1.focus();
}