ASP.NET

<h1 id="heading" runat="server" />

void Page_Load(object sender, EventArgs e)
{
   heading.InnerHtml = Request.Params["itemtype"] + " Items";
}

p.aspx?itemtype=<script>close()</script>

dojohansen wrote:

If anyone has the inside knowledge to answer my actual question rather than try to second-guess what I'm asking (no offense, I appreciate the attempt!) then please let me know.

public class Connection
{
   const string threadKey = "Connection";

   // Private constructor
   Connection(string cnxStr) { ... } 

   // All instance members are private...
   int transactionLevel;
   SqlTransaction transaction;
   SqlConnection sqlConn;
   ...

   // .. including methods
   void beginTransaction()
   {
      ...
   }

   // A *private* static property gets the current instance.
   Connection current
   {
     get 
     {
        Connection c = CallContext.GetData(threadKey) as Connection;
        if (c == null) 
        {
            // This is the only place in the app we need to know where 
            // connection information comes from. :)
            string cnxStr = ...;
            c = new Connection(cnxStr);
        }
        return c;
     }
   }

   // The public interface is all static, giving the illusion that there
   // is only one connection, when in fact there is one per thread.
   static public void BeginTransaction()
   {
      // Just call the corresponding instance method on "current".
      current.beginTransaction();
   }
}