How can I add the keyword visitors used to get to me site on "Destination URL"

[donald]

Hi there, what I want to do is, each keywords that visitors used to get to my site to add it to the Destination URL so I can keep track on sales.

let's say a visitor used keyword "dp adwords forum" so I want him to go to a page "digitalpoint.com?q=[the keyword here"] in this case digitalpoint.com?q=dp adwords forum

can I do url.com?q={keyword} ?

since I use CJ SID for each keywords in my site, if a visitor got to my site from those keywords I can track sales\leads.

10x