Easier hittest?

I’m trying to make a space shooter game but every time i have like more than 3 enemies on screen, it lags like hell. Its because of my hitTests. I have to run through every name of bullets to check to see if it was hit by one.
/////////////////////////////////////////////////
for(count = 0; count != 20; count++)
if(this.hitTest(_root[“laser”+count])
/////////////////////////////////////////////////
is there any way i can just check and see the name of what hit it?
like
/////////////////////////////////////////////////
obj = this.hitTest._name;
/////////////////////////////////////////////////
I know that doesn’t work or anything, but can i somehow figure out the name of what hit my enemy object?

a before hand thanks,
Fydus