Call webservice from XSLT or secure url parameters

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XSLT

jQuery

webservice

Hi Frnds,
I need ur help in order to complete my tasks.. i need to secure the URL parameters say, i have a page which loads based on a id. This page is redirected from XSLT using a href link.

<br />
<pre lang="xml"><td class="col-two"><br />
           <a href="/Business.aspx?Id={Leadid}"><br />
             <xsl:value-of select="Business"/><br />
           </a><br />
         </td></pre><br />

This Leadid is visible when the page loads i needs to encrypt this id in jquery after page loads or needs to write a encryption code in webservice and call the webservice from xslt page and send the encrypted lead id.

Which is the best way to achieve the task, and also how to call webservice from xslt a href link.