Millisecond Forums

so i would like to use different IATs for a DFG project and will have my participants fill out an online survey before coming in our lab.
in this online survey i would like to build in an IAT so they have time to do different tasks when in the lab.
is there any chance i can integrate my milliseconds script into an online survey? i am using unipark if thats relevant. it has a function to link to external programs or scripts.
how would i go about that? is there an option that i can privately upload my IAT and users on different computers (without millisecond) can do the IAT and the answers and reaction times be saved on out millisecond computer in our office?

cheers for answers in advance