100826 Get Keywords Javascript

I need quick javascript that displays the keyword of the keyword entered in a search engine. For example if I went into google and typed in the term "cars" and one of my pages were found, once I clicked on the link it take me to the web page where I could display the keyword -"Cars". Example two If I search for the terms "Usa Muscle Cars", once they found my link and clicked on it I would display something like, Here you can find everything about - "Usa Muscle Cars". This needs to be able to work for Google Adwords as well. Hope this is clear, please let me know if you have questions. Thanks Frank