javascript - Validation for and tags

javascript - Validation for and tags

I need javascript validation for and tags.
I need validation for following code:
<embed
width="420" height="345"
src="http://www.youtube.com/v/XGSy3_Czz8k"
type="application/x-shockwave-flash">
</embed>
(or)
<iframe width="420" height="345"
src="http://www.youtube.com/embed/XGSy3_Czz8k">
</iframe>