一个查询中错误,求助!

我想实现当输入会员名时,查询表格显示相应的记录,当页面载入时显示的是
lv_name= ' '时的内容,但当我输入会员名时,再按查询,显示的是空记录,数据库我看过有记录的,我把lv_name= ' "&strl& " ' "用lv_name= '张三 '时,查询正确的!是不是
if   request.form( "active ")= "yes "   then
strl=Request.QueryString(request.form( "text "))  
sql   =   "Select   *   from   news   where   lv_name= ' "&strl& " ' "有错误啊?
请教下!!!
代码部分:
-------------------------------
<%Set   rs=   Server.CreateObject   ( "ADODB.Recordset ")
if   request.form( "active ")= "yes "   then
strl=Request.QueryString(request.form( "text "))  
sql   =   "Select   *   from   news   where   lv_name= ' "&strl& " ' "
else
sql   =   "Select   *   from   news   where   lv_name= ' ' "
end   if
rs.Open   sql,db,1,3
%>
<form     method= "post "   action= " "   name=form1>
<input   name= "active "   type= "hidden "   id= "active "   value= "yes ">
输入查询条件:会员名:
<input   type= "text "   name=text>
<input   type= "submit "   name=submit   value=查询   >  
<table> ..显示内容..
</table>
</form>


------解决方案--------------------
把strl=Request.QueryString(request.form( "text "))改成 strl=request.form( "text "))应该可以了