RE: generating xml from xml

Sure, "Trade/*" is just a guess at an appropriate match pattern based on 
the input sample you sent. You can match the elements any way that works 
for your data. (You only need a way to distinguish between elements that 
you want handled like this, and other elements.)

 Thanks for the solution. But I am not really good in this xsl. Solution to this problem will be helpful.

Here is my current xsl that works fine for me. 

<xsl:stylesheet version="1.0" xmlns="" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
	<xsl:template match="/">
		<xsl:apply-templates select="*"/>
	</xsl:template>
	<xsl:template match="*">
		<xsl:copy>
			<xsl:apply-templates select="@* | node()"/>
		</xsl:copy>
	</xsl:template>
	<xsl:template match="Trade">
		<Trade>
			<xsl:for-each select="*">
				<xsl:element name="{/Data/Fields/_[@id=name(current())]/@fn}">
					<xsl:apply-templates select="@* | node()"/>
				</xsl:element>
			</xsl:for-each>
		</Trade>
	</xsl:template>
	<xsl:template match="@* | node()">
		<xsl:copy>
			<xsl:apply-templates select="@* | node()"/>
		</xsl:copy>
	</xsl:template>
</xsl:stylesheet>

which works great on this xml :

<Data Timestamp="2003-11-05 21:00:07">
	<Fields>
		<_ fn="Level1" id="F0"/>
		<_ fn="Level2" id="F1"/>
		<_ fn="Level3" id="F2"/>
		<_ fn="TradeDate" id="F3"/>
		<_ fn="TradeId" id="F4"/>
		<_ fn="User" id="F5"/>
	</Fields>
	<Trades>
		<Trade>
			<F0/>
			<F1/>
		</Trade>
		<Trade>
			<F0/>
			<F1>Entry</F1>
			<F2/>
		</Trade>
		<Trade>
			<F0>Mid</F0>
			<F1/>
			<F2/>
			<F3/>
			<F4>126</F4>
		</Trade>
	</Trades>
</Data>

But I want it to work on this kind of xml also

<Data Timestamp="2003-11-05 21:00:07">
	<Fields>
		<_ fn="Level1" id="F0"/>
		<_ fn="Level2" id="F1"/>
		<_ fn="Level3" id="F2"/>
		<_ fn="TradeDate" id="F3"/>
		<_ fn="TradeId" id="F4"/>
		<_ fn="User" id="F5"/>
	</Fields>
	<Trades>
		<Trade>
			<F0/>
			<F1>Entry</F1>
			<F2/>
		</Trade>
		<Trade>
			<F0>Mid</F0>
			<F1/>
			<F2/>
			<F3/>
			<F4>126</F4>
		</Trade>
	</Trades>
	<DelTrades>
		<DelTrade>
			<F0/>
			<F1/>
		</DelTrade>
	</DelTrades>
</Data>

Notice that top nodes(Trade, DelTrade) on F0, F1 ..... are not same all the time. And I can't guarantee their names at run time. 
Is there any way directly(not depending on its top node) finding nodes F0, F1, F2 .......?

Thanks,
~Mur

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