Have you validated your HTML to make sure that it is correct?
Errors found while checking this document as XHTML 1.0 Transitional!
Result: 66 Errors
Start with deciding which doctype that you want to use. Your HTML says that you want to use transitional, but then you are using attributes that are not part of that set. There is no 'quality' attribute for the embed tag using transitional, etc. There are two opening body tags, and one body close tag, so the the document has issues.