HttpHandlers / Modules :: Url Rewriting / How To Move All These Rewritings To Web.config

In Application_BeginRequest method of global.asax I rewrite urls like this:

if (fullOrigionalpath.ToLower().Contains("www.site1.com/home.aspx"))
{
Context.RewritePath("~/Site1/Home.aspx", false);
}
else if (fullOrigionalpath.ToLower().Contains("www.site2.com/home.aspx "))
{
Context.RewritePath("~/Site2/Home.aspx", false);
}
else if (fullOrigionalpath.ToLower().Contains("www.site3.com/home.aspx"))
{
Context.RewritePath("~/Site3/Home.aspx", false);
}

Now I need to move all these rewritngs to web.config. I am going to use Intelligencia.UrlRewriter.

I am able to rewrite path only for one url:

<rewriter>
<rewrite url="~/home.aspx" to="~/Site1/Home.aspx" />
</rewriter>

How can I do this for multiple urls like to="~/variable name here/Home.aspx"?