Replace things in request.servervariables("QUERY_STRING")

I have a link to switch between languages.
So what I need to do is search in request.servervariables("QUERY_STRING") if there is a "&lg=1" or "&lg=2" in string then remove it.
Example:
request.servervariables("QUERY_STRING") = http://www.mysit.com/products.asp?id_product=1&tab=2&lg=1
I need it to return only until http://www.mysit.com/products.asp?id_product=1&tab=2
Please, help!
Thanks in advance!

<%if idioma = 2 then%>
<a href="<%=request.servervariables("URL")%>?<%=request.servervariables("QUERY_STRING")%>&lg=1">LINK to language 1<a>
<%else%>
<a href="<%=request.servervariables("URL")%>?<%=request.servervariables("QUERY_STRING")%>&lg=2">LINK to language 2<a>
<%end if%>

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drix76Asked:
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
you mean:
<%
Dim qs
qs = request.servervariables("QUERY_STRING")
qs = replace(qs, '&1g=1', '')
qs = replace(qs, '&1g=2', '') 
if idioma = 2 then%>
<a href="<%=request.servervariables("URL")%>?<%=qs%>&lg=1">LINK to language 1<a>
<%else%>
<a href="<%=request.servervariables("URL")%>?<%=qs%>&lg=2">LINK to language 2<a>
<%end if%>

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drix76Author Commented:
Thank you for your quick answer, but it didn't work... The &lg=1 or 2 is still in qs

<%
Dim qs
qs = request.servervariables("QUERY_STRING")
qs = replace(qs, "&1g=1", "")
qs = replace(qs, "&1g=2", "")
response.write qs
' it results products.asp?id_product=1&tab=2&lg=1 still
%>
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
is that a 1 (one) or l (letter L) ?


qs = replace(qs, "&lg=1", "")
qs = replace(qs, "&lg=2", "") 

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rg20Commented:
He code you have above has a "1g". Not "lg". One vs L would not work
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drix76Author Commented:
Thank you both very much!!!
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