how do I find the sum for nested elements???

my xml structure

<AgentInfo>
    <MerchantList>
         <MerchantInfo>
             <Bal>10</Bal>
         </MerchantInfo>
         <MerchantInfo>
             <Bal>10</Bal>
         </MerchantInfo>
    </MerchantList>
  </AgentInfo>
   <AgentInfo>
      <MerchantList>
           <MerchantInfo>
                <Bal>10</Bal>
           </MerchantInfo>
           <MerchantInfo>
                <Bal>10</Bal>
           </MerchantInfo>
      </MerchantList>
  </AgentInfo>


I need the Total Balance i.e Grand Total for all Merchants  ....and also the
Total Balance Agent wise using XSL

eg Grand Total =40
(Agent wise)Total=20

Thanks in advance.
Garrick









----- Original Message -----
From: "Mike Brown" <mike@xxxxxxxx>
To: <xsl-list@xxxxxxxxxxxxxxxxxxxxxx>
Sent: Thursday, December 06, 2001 9:57 AM
Subject: Re:  Prining Hex04 character using xsl.


> Avula, Raj wrote:
> > I am generating a text string using xsl. I have to insert
> > Hex04 character in the output.
>
> This is not possible because that character is not allowed in an
> XML document, not even by reference. You must output an allowed
> character and convert it in a post-processing step.
>
>    - Mike
>
____________________________________________________________________________
>   mike j. brown, fourthought.com  |  xml/xslt: http://skew.org/xml/
>   denver/boulder, colorado, usa   |  personal: http://hyperreal.org/~mike/
>
>  XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list