How to read the Hidden Values from Test1.aspx using Server.Tranfer("Test2.aspx", true)?

 Hello!
 
I have a little problem. I have two pages: Test1.aspx and Test2.aspx. At Test1, i have some <input type="hidden"> variables.
For example,  lets say tha i have  
<input type="hidden" id="BaseName" name="BaseName" runat="server" /> When a user presses the "Submit" button, the onClick() event, loads a sub in VB.NET Code file (Test1.aspx.vb). Inside codefile, i'm making  BaseName.value = "xxx", and then, i'm using  Server.Transfer("Test2.aspx", true) to redirect to the Test2.aspx....
 At Test2.aspx, ...