h bridge problem

[aarjavmalhotra]

i recently came across a software which simulates circuits. i was going to use the h bridge schematic as shown in the h bridge tutorial, but thought of checking it in the simulator first. the problem is that the simulation is not as predicted in the tutorial. I'm including a link to the simulator. is there a problem with the schematic?
 
http://www.falstad.com/circuit/

[tmoney68]

I played a little; with that simulator...I don't know how accurate it is, but I wasted a bunch of time playing with it!

[aarjavmalhotra]

so is the schematic and truth table in the tutorial correct? have you tried it?