<!--
var vtWin=0;

function virtualstill(URLStr) {
  if(vtWin)
  {
    if(!vtWin.closed) vtWin.close();
  }
vtWin = open( URLStr , 'vtWin', 
"top=40,left=40,width=470,height=400");
}

function virtualscan(URLStr) {
  if(vtWin)
  {
    if(!vtWin.closed) vtWin.close();
  }
vtWin = open( URLStr , 'vtWin', 
"top=40,left=40,width=470,height=450");
}

// -->