Calculation of Minimum or Maximum value of an element

        Hello,

        Can anyone please tell me how to calculate the minimum or
maximum values of a set of nodes and display them using         XSLT ?
        For e.g if I have
        <A>300</A>
        <A>250</A>
        <A>900</A>
        How can I write a template or a function which calculates the
least A element value and displays it ???

        Thanx,
        Chitra

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