I have a dilemma whether to include a javascript widget in my page.

The widget is very useful for the visitor, it enables them to search hotel availability for particular regions or specific hotels, flights and car rental.

However, the code is huge. My concern is that the extra code added to my page may adversely effect my on page SEO efforts.

I already know I should have the file off page and call it from within the head, rather than include it in the body. But the rendered code still shows it in the body.

Should I be concerned?