function TextOpen(thema,breit,hoch)
{
var left;
var top;
left=0;
top=0;
breit=breit+2;
hoch=hoch+2;
if (screen.availWidth > breit)
	{
	left=(screen.availWidth-breit)/2;
	}
if (screen.availHeight > hoch)
	{
	top=(screen.availHeight - hoch)/2;
	}

	info=window.open(thema,'Text','Width='+breit+',Height='+hoch+',top='+top+',left='+left+',scrollbars=no,resizable=no,dependent=yes,status=no');
info.focus();

}