how to refresh response of xml?

[EDN Admin]

Below is my asp page in the server
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http://test.com/Request.asp
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Below code is in the request.asp page<span style="color:Blue; <<span style="color:#A31515; br<span style="color:Blue; /><span style="color:Blue; <<span style="color:#A31515; br<span style="color:Blue; />pXML= Product_Request<span style="color:Blue; <<span style="color:#A31515; br<span style="color:Blue; />set http = Server.CreateObject("Microsoft.XMLHTTP")<span style="color:Blue; <<span style="color:#A31515; br<span style="color:Blue; />http.Open "POST", "http://test.com/Response.asp?xml_request=" & pXML , true<span style="color:Blue; <<span style="color:#A31515; br<span style="color:Blue; />http.setRequestHeader "Content-Type", "application/x-www-form-urlencoded"<span style="color:Blue; <<span style="color:#A31515; br<span style="color:Blue; />http.send<span style="color:Blue; <<span style="color:#A31515; br<span style="color:Blue; />http_response = http.responseText<span style="color:Blue; <<span style="color:#A31515; br<span style="color:Blue; />response.write http_response
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request goes to the below page (in same server)
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http://test.com/Response.asp
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<div style="color:Black;background-color:White; <pre>
response.write "<span style="color:Blue; <<span style="color:#A31515; Message<span style="color:Blue; >First<span style="color:Blue; <<span style="color:#A31515; Message<span style="color:Blue; >"<span style="color:Blue; <<span style="color:#A31515; br<span style="color:Blue; /><span style="color:Blue; <<span style="color:#A31515; br<span style="color:Blue; />
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Every time response is coming same why?
For example, if i update
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"<span style="color:Blue; <<span style="color:#A31515; Message<span style="color:Blue; >First<span style="color:Blue; <<span style="color:#A31515; Message<span style="color:Blue; >"
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to
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"<span style="color:Blue; <<span style="color:#A31515; Message<span style="color:Blue; >Second<span style="color:Blue; <<span style="color:#A31515; Message<span style="color:Blue; >"
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sd

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