Placing Orders

Things related to placing orders.

limit & stop orders
    order.limitPrice
    order.stopPrice
    a condition that if met, order executes at market price
    only a condition and not the price at which order executes

limit buy	if ask <= order.limitPrice: order executes
limit sell	if bid >= order.limitPrice: order executes

stop  buy	if ask >= order.stopPrice: order executes
stop  sell	if bid <= order.stopPrice: order executes

stoplimit order
stoplimit buy	if ask >= order.stopPrice: neworder.limitPrice = order.limitPrice