what is java script for the following data?
<p>I want a script which does the below,
Here "xxxx xxxx xxxx"  is a keyword</p>

<p>All my  ad visitors will come to my site via bing/yahoo search</p>

<ol>
<li><p>Visitors type "xxxx xxxx xxxx' in bing/yahoo and see my ad</p></li>
<li><p>Once they click on my ad, they are directed to my site</p></li>
<li><p>In my site i want to display my normal content with "xxxx xxxx xxxx" as my heading (whichever they typed)</p></li>
</ol>

<p>This "xxxx xxxx xxxx" is the keyword what visitor type in search engines, so script should be intelligent enough to take the keywords from the search engine.</p>
