function twoDecimals ( numeric ) {
   if ( typeof( numeric ) == String ) tal = parseFloat( numeric );
   talTx = "0" +Math.round( 100.0*numeric ) +"0"
   if ( talTx.length < 5 ) {
       preZero = "_000";
       taltx = preZero.substring(0,6-talTx.length) +talTx.substring(1);
   };
   talTx = talTx.substring(1,talTx.length-3) +"."
           + talTx.substring(talTx.length-3,talTx.length-1);
   return talTx;
}; //end twoDecimals ( number ) -> String