var win=null;
function NewWin(mypage,myname,w,h,scroll,pos)
{
  if(pos=="center"){LeftPosition=(screen.width)?(screen.width-w)/2:100;TopPosition=(screen.height)?(screen.height-h)/2:100;}
    else if((pos!="center" && pos!="random") || pos==null){LeftPosition=0;TopPosition=0}
  settings='width='+w+',height='+h+',top='+TopPosition+',left='+LeftPosition+',scrollbars='+scroll+',location=no,directories=no,status=no,menubar=no,toolbar=no,resizable=no';
  win=window.open(mypage,myname,settings);
  win.document.focus();
}