244170 RSS feed to hover box

I already have a basic script which takes RSS feed from ebay or amazon and put the ad into the hoverbox. Hoverbox is what you see a big box when you mouse over on a keyword or text.. similar to intellitext. Now here is what I am looking for 1.. Currently I am able to show only 1 ad at a time. So you need to show different content for different text overs. eg. if there are 10 keywords on a page and we are fetching 10 auctions from ebay rss feed.. then all these 10 keywords will show differnt bids on hoverbox 2.. Currently I am using Ob_Start function.. but the problem is, if those keywords are in the navigation menu the script will show hoverbox on them.. So we need to show these ads only on the main article content.. we can use something like <div id=maincontent> whole article goes here <div> so that the script will look for the content within this div tag and will process only on that content. 3.. If any keyword is already hyperlinked within the article then it should not show hoverbox. 4.. Also note that these hoverbox linking should be SEO friendly. that means the keyword within content should not go within javascript. it should be something like < a href = [login to view URL] onmouseover(yourjavascript) > keyword < /a >