I think it's probably this:

<a style='color:#0000ff' href= "#" onClick="window.open('http://youtu.be/c8w9E4DpExw', 'NAC32', 'left=20, resizable=yes, width=750, height=500');"> <span>installation video.</span></span></a>

but it's been a while since I've used that stuff.

A better way might be to use the embed option at YouTube to embed the iframes into the EZ pages and just link straight to those pages on the Support page.