XML

I wrote a code to generate the an .xml file. It doesnot work. Can any one find any mistake in the code.

code:
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<cfquery datasource="Arunatest1" name="update">
select * from emp where deptno=10
</cfquery>

<cfxml variable="POXML">
<cfoutput>
<Productrequested Name="Test" PODATE="#Dateformat(now(),"mm/dd/yyyy")#" Supplier="UMUC web apps" SupplierName="Aruna"></cfoutput>
<Itemdetails>
<cfoutput query="Update">
<TaID> #emplid# </TaID>
<StuID> #deptno# </StuID>
<SSAN> #Name# </SSAN>
<Stu_Last> #City# </Stu_Last>
</cfoutput>
</Itemdetails>
<Productrequested>
</cfxml>

<cfoutput>
<cfset XMLTextForFile=ToString(POXML)>
<cfset varFile="..\student.xml">
<cffile action="write" file="#varFile#" output="#XMLTextForFile#">
</cfoutput>