Is JavaScript the problem here?

[tiger1]

Hi all,

I wonder if someone could help.

I have a simple website which, just before Christmas got into Page 1 of MSN for the first time. Traffic shot up - but not knowing how to leave a good thing alone, I put up a new index page (I changed only the index page).

I did this on December 30. Within 10 days my traffic was falling and the site is no longer on Page 1 of MSN.

The new page has more graphic images and a javascript that calls up a new image whenever you refresh the page. Thought it'll enhance my users visit.

My question is - could it be that MSN dropped the site because of the more complex coding? Or is this likely to be just a coincidence?

My other sites that improved with MSN - and which I have left well alone, are holding on to their new SERP positions.