How to prevent IE Caching ???

Hi AIl,
I am using dhtmlX tree , to display tree in first jsp and loading the tree using xml file, but when i go to second jsp and come back to first one, i have some changes in the xml file and thus creating new xml file and string on disk to load the new xml again to form the tree in first jsp, but the problem is, due to the IE caching its taking the old xml file from Temporary Internet files folder and thus changes will not reflect... question is how can I prevent this caching of xml file in that folder ......
I tried this but not working
<%
response.setHeader("Cache-Control","no-cache");
response.setHeader("Pragma","no-cache");
response.setDateHeader ("Expires", -1);
%>
<HTML>
<HEAD>
</HEAD>
<BODY>
my page body
</BODY>
<HEAD>
<META HTTP-EQUIV="PRAGMA" CONTENT="NO-CACHE">
<META HTTP-EQUIV="Expires" CONTENT="-1">
</HEAD>
</HTML>
Many thanks in advance !!!

prashant-kadam wrote:
I am using dhtmlX tree , to display tree in first jsp and loading the tree using xml file, but when i go to second jsp and come back to first one, i have some changes in the xml file and thus creating new xml file and string on disk to load the new xml again to form the tree in first jsp, but the problem is, due to the IE caching its taking the old xml file from Temporary Internet files folder and thus changes will not reflect... question is how can I prevent this caching of xml file in that folder ......So the JSP page should load the XML itself and not the webbrowser? How have you confirmed that the problem is with IE? Have you tried another webbrowsers? Have you tried restarting the appserver after XML change and before using IE?
response.setHeader("Cache-Control","no-cache");
response.setHeader("Pragma","no-cache");
response.setDateHeader ("Expires", -1);Looking good.
<HTML>
<HEAD>
</HEAD>
<BODY>
</BODY>
<HEAD>
<META HTTP-EQUIV="PRAGMA" CONTENT="NO-CACHE">
<META HTTP-EQUIV="Expires" CONTENT="-1">
</HEAD>
</HTML>Shouting in HTML is not needed, it's soo 1990s.

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