var msgWindow = null;

function neuesFenster(mypage,myname,w,h,scroll)
{
 LeftPosition = (screen.width) ? (screen.width-w)/2 : 0;
 TopPosition = (screen.height) ? (screen.height-h)/2 : 0;
 settings = ('height='+h+',width='+w+',top='+TopPosition+',left='+LeftPosition+',screenY='+TopPosition+',screenX='+LeftPosition+',scrollbars='+scroll);
 msgWindow = window.open(mypage,myname,settings);
}