ASP to ASPX conversion when markup and vb.code is mixed in asp

Hi,

I'm new to ASP.net , I have asp pages where, mark up language and vb.code is mixed. I wanted to convert those pages to ASP.NET.  Should i retain that code in ASPX pages or which approach i can take in ASPX pages.

Can anybody please help me in this regard???

Thanks in Advance

code in html part looks like this:

<%If abcd <> 0 Then%>

        <input type="hidden" name="abcd" value="<%=abcd%>" />

<%End If%>

<% If xyz <> 0 Then %>

 <input type="hidden" name=”xyz" value="<%=xyz%>" />

<% End If %>

<% If ab123 <> 0 Then %>

 <input type="hidden" name="ab123" value="<%=ab123%>" />

<% End If %>