function displayImage (img, title, caption, bgcol, txcol) {
  if (arguments.length < 5) {
    if (arguments.length < 4) {
      if (arguments.length < 3) {
        if (arguments.length < 2) {
          if (arguments.length < 1) {
             img = "" ; title = "" ; caption = "" ; bgcol = "#000000" ; txcol = "#CCCCCC"
          } else
					  title = "" ; caption = "" ; bgcol = "#000000" ; txcol = "#CCCCCC"
        } else
          caption = "" ; bgcol = "#000000" ; txcol = "#CCCCCC"
      } else
        bgcol = "#000000" ; txcol = "#CCCCCC"
    } else
      txcol = "#CCCCCC"
	}
	// if (is.nav4up)	netscape.security.PrivilegeManager.enablePrivilege("UniversalBrowserWrite")
	var pars = 'titlebar=0,scrollbars=1,status=1,dependent=1,resizable=1'
	pars += ',screenX=0,screenY=0,width='+screen.width+',height='+screen.height
	image = window.open ('', '', pars)
	image.document.open ('text/html', 'replace')
	image.document.writeln ('<html>')
	image.document.writeln ('<script type="text/javascript">window.moveTo(0,0);window.resizeTo('+screen.width+','+screen.height+')</script>')
	image.document.writeln ('<body bgcolor="'+bgcol+'" text="'+txcol+'">')
      image.document.writeln ('<table border="0" cellpadding="0" cellspacing="0" width="100%"><tr><td align="right" valign="top"><a href="javascript:window.close()"><IMG SRC="../../icones/window_close.gif" width="91" height="15" border="0"></A></td></tr></table><br>')
	image.document.writeln ('<center><table border="0" cellpadding="0" cellspacing="0" width="50%">')
	image.document.writeln ('<tr><td valign="top"><a href="javascript:window.close()">')
	image.document.writeln ('<img src="'+img+'" border="0"></a></td></tr>')
	if (title != "") image.document.writeln ('<tr><td valign="top"><b><FONT face="Arial, Helvetica, sans-serif" size="2">'+title+'</FONT></b></td></tr>');
	if (caption != "") image.document.writeln ('<tr><td valign="top"><FONT face="MS Sans Serif, Arial, Helvetica, sans-serif" color="#777777" size="1">'+caption+'</FONT></td></tr>')
	image.document.writeln ('</table></center></body></html>')
}
