You can put an Odds bet "Behind the Line" on the Pass bet after the point is established. Simply click your mouse just below the Pass Line to set the bet.

If the house limit is set to Single Full Odds, the maximum Odds Bet is generally equal to the Pass Bet. It can be greater than the Pass Bet, but only up to the next higher amount that produces an even dollar payoff. If the house limit is set to Double Full Odds, the Odds Bet is twice the Pass Bet amount, adjusted to eliminate fractional payoffs.

The payoff odds depend upon the point made:
2 to 1 on the 4 and 10
3 to 2 on the 5 and 9
6 to 5 on the 6 and 8