Problem embedding youtube video links as the youtube navigations are still engaged when video is not

I've hit a problem that you may be able to help with. I've embedded 4 youtube videos into my interactive brochure and created a pop-up animation screen that appears with the embedded video link appears when the play button is clicked. There is a close button, that reverses the animated pop-up screen back to the home page.

My problem is that after the closed button is clicked and the pop-ups disengage, if I try to click a different button on my home page, the youtube navigations are still engaged from the previously closed pop-up video (i.e I'll try to click the next page button and the previously closed video will start to play or skip the video ahead 10 seconds etc...) is there anyway around this problem? When I click the close button, I want all the youtube controls to be completely disengaged until the video play button is clicked again. I know I could do this with an embedded video file but I can't figure out how to do it with a embedded video link.

Thanks ahead for your help and advice