German Umlaute in a Dialog?

Hi,

is there a way to display german "Umlaute" (ä, ü, ö) in a Custom Dialog?

I tried UTF-8 hexadezimal, Unicode, Javascript - Type and the Html - Type.

Unfortunetly all didnt work!

Examples:

--------------------- Standard ------------------

dlg.msgPnl.SaveAsBtn = dlg.msgPnl.add('button', [370, 47, 470, 70], "Ändern...", {name:'select'});

--------------------- UTF-8 hexadezimal ------------------

dlg.msgPnl.SaveAsBtn = dlg.msgPnl.add('button', [370, 47, 470, 70], "%C3%84ndern...", {name:'select'});

--------------------- Unicode ------------------

dlg.msgPnl.SaveAsBtn = dlg.msgPnl.add('button', [370, 47, 470, 70], "U+00C4ndern...", {name:'select'});

--------------------- Javascript ------------------

dlg.msgPnl.SaveAsBtn = dlg.msgPnl.add('button', [370, 47, 470, 70], "%C4ndern...", {name:'select'});

--------------------- HTML ------------------

dlg.msgPnl.SaveAsBtn = dlg.msgPnl.add('button', [370, 47, 470, 70], "Ändern...", {name:'select'});