How to set an attribute of a HTML tag with a value in the Servlet

I have a HTML page and a Servlet.
The HTML page sends a request to the Servlet.
The Servlet has to read the contents of the HTML page. When the Servlet encounters the body tag it should set the bgcolor attribute of the body tag with a string(For eg.a string called color with a value blue) in the servlet.
After doing this the Servlet has to update the original HTML page with the changes (in the body tag).
I need a help on this.

Hi sangee,
you could get what you want to do by using a Java Server Page instead of both a HTML page and a Servlet.
I should code something like this:
<%Strung color="yourColor"%>
<html><head><title></title></head>
<body bgcolor="<%=color%>
</body>
</html>

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How to set an attribute of a HTML tag with a value in the Servlet

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