Set Score

i hav a dynamic text box with a variable name of total

how do i make it so it ses 0 before you start
then when things hittest it adds 1 to the score

for 0 before you start i though:

_root.total = 0;

and for +1 everytime

if (bullet.hitTest(enemy)) {
	_root.total = _root.total + 1;
}

the first 1 dousnt work but i havent tried the second so would it work?