Add script to webviewer to control video

[apinrise]

I'm trying to incorporate a Set Time and Get Time component to my webviewer, which currently plays video.

I want to be able to jump to certain times in the video, based on what we enter. So if a certain dialog starts at 3:04, we can click on that story and the video will skip ahead.

Can't seem to get any form of script to work within the web viewer, but this is what I'm going for: http://www.w3schools.com/tags/tryit.asp?filename=tryhtml5_av_prop_currenttime

though a more advanced and ideal set-up would be this: https://www.developphp.com/video/JavaScript/Video-Player-Custom-Controls-Programming-Tutorial

I'm having no luck with either.

Any advice?