thebluestar 0 Junior Poster in Training

I using the value pass from url to open a new page but there are some mistakes,
but I cannot find them
here is my all files to do that:
main.asp

<%@LANGUAGE="VBSCRIPT" CODEPAGE="65001"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>
</head>
<%
	check = "ok"
%>
<body>


	<table width="100%" >
    
		<tr>
        	<td colspan="3" bgcolor="#990033">
            		<!--#include file="header.asp"-->
            </td>
        </tr>    
    	<tr>
        	<td width="20%" with="20%"><!--#include file="left.asp"--></td>
        	<td width="55%" bgcolor="#CCCCCC" with="60%">
            				<!--#include file="dynamic_site.asp"-->
            </td>
        	<td width="25%" >
            		<!--#include file="right.asp"-->
            </td>                        
        </tr>
        
		<tr>
        	<td colspan="3" bgcolor="#0000FF">
            		<!--#include file="footter.asp"-->            
            </td>
        </tr>
    </table>

</body>
</html>

dynamic_site.asp

<%
	module =	Request.QueryString("mod")
	action  =	Request.QueryString("do")
	
		select case module								
			case "employer"
				if(action="site") then
					%>
								<!--#include file="employerSite.asp"-->                
					<%
				end if
				
				if (action="profile") then
					%>
                				<!--#include file="employerProfile.asp"-->    
                	<%
				end if
				
			case "user"	
				if(action="search") then
					%>
								<!--#include file="search.asp"-->                
					<%
				end if
			case else  '
			%>
			<!--#include file="main.asp"-->     
			
		<%
		end select 	
%>

header.asp

Header

footer.asp

Footer

right.asp

Right

left.asp

<a href="?mod=employer&do=site" >Employer site</a><br/>
<a href="?mod=employer&do=profile" >Employer profile</a><br>
<a href="?mod=user&do=search">Search</a><br/>

employerSite.asp

<h3>Area for employer only!</h3><hr />
*********<a href="?mod=employer&do=register">Register</a>
*********<a href="?mod=employer&do=manage">Manage profile</a>

employerProfile.asp

Profile

search.asp

search

I think the problem in the dynamic_site.asp, but I dont' find any thing wrong with it!