EGroupware / egroupware

          weightSumC = 0,

          weightK    = 1, // start at 1 because the right-most character is "C" checksum

          weightSumK   = 0;

          for(i=code.length-1; i>=0; i--){

            weightC = weightC == 20 ? 1 : weightC + 1;

            weightK = weightK == 15 ? 1 : weightK + 1;

            index = table.indexOf( code.charAt(i) );

            weightSumC += weightC * index;

            weightSumK += weightK * index;

          }

          var c = weightSumC % 47;

          weightSumK += c;

        weightSumC = 0,

        weightK    = 1, // start at 1 because the right-most character is "C" checksum

        weightSumK   = 0;

        for(i=code.length-1; i>=0; i--){

          weightC = weightC == 10 ? 1 : weightC + 1;

          weightK = weightK == 10 ? 1 : weightK + 1;

          index = table.indexOf( code.charAt(i) );

          weightSumC += weightC * index;

          weightSumK += weightK * index;

        }

        var c = weightSumC % 11;

        weightSumK += c;