Creating a hyperlink with a response.write

I have the following code in a table that works fine:

<td width="60"><b><a href="purchase_details.asp?id=<%Response.Write rs3("m_id")%>">View Details</a></b></td>

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I want to incorporate into that line an if statement that basically says

if Response.Write rs3("m_status") = "purchased" then do the above code else I want nothing

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Thanks in advance for your help