versions/0.2.2/oj.js
function(rx, tr){
        // Empty
        if (this.rowCount === 0)
          this.$el.oj(tr)

        // Last
        else if (rx === this.rowCount)
          this.$tr(rx - 1).ojAfter(tr)

        // Not last
        else
          this.$tr(rx).ojBefore(tr)

        this.bodyChanged()
      }
function(rx, tr){
        // Empty
        if (this.rowCount === 0)
          this.$el.oj(tr)

        // Last
        else if (rx === this.rowCount)
          this.$tr(rx - 1).ojAfter(tr)

        // Not last
        else
          this.$tr(rx).ojBefore(tr)

        this.bodyChanged()
      }
_addRowTR: Helper to add row directly with `<tr>`