function abreventanaMax( aURL, aWinName )
{
   var wOpen;
   var sOptions;
   var sURL
   
   sURL = aURL

   sOptions = 'directories=no,status=yes,toolbar=no,menubar=no,scrollbars=yes';
   sOptions = sOptions + ',resizable=no,location=no,maximize=no';
   sOptions = sOptions + ',width=835' //+ (screen.availWidth - 300).toString();
   sOptions = sOptions + ',height=650' //+ (screen.availHeight - 200).toString();
   sOptions = sOptions + ',screenX=0,screenY=0,left=0,top=0';

   window.open( sURL, aWinName, sOptions );
   
}