code: function addGetParam ( params, divId, url, cellDta ) {
    log( "Pong-Table", "addGetParam "+ JSON.stringify( params ) );
    if ( Array.isArray( params ) ) {
      var first = true;
      for ( var x = 0; x < params.length; x++ ) {
        if ( url.indexOf("?") > -1 ) {	url += '&';	} else { url += '?'; }
        var val = params[x].value;
        $.each( cellDta, 
            function( key, value ) {
              //log( "Pong-Table", "     check: "+"${"+cellDef.id+"}" );
              if ( val.indexOf( "${"+key+"}" ) > -1 ) {
                val = val.replace( "${"+key+"}", value );
                log( "Pong-Table", "val="+val );
              }
            }
        );
        url += params[x].name+'='+val;								
      }
    }
    log( "Pong-Table", "URL: "+url );
    return url;
  }
docs: ----------------------------------------------------------------------------