XSLT 1.0 Group By

I have the following XML data:

<?xml version="1.0" encoding="iso-8859-1"?>
<results>
    <result>
        <MemberFirstName>JOHN</MemberFirstName>
        <MemberLastName>DOE</MemberLastName>
        <MemberLogin>1</MemberLogin>
        <Store>0180</Store>
    </result>
    <result>
        <MemberFirstName>JANE</MemberFirstName>
        <MemberLastName>DOE</MemberLastName>
        <MemberLogin>2</MemberLogin>
        <Store>0180</Store>
    </result>
    <result>
        <MemberFirstName>ALAN</MemberFirstName>
        <MemberLastName>SMITH</MemberLastName>
        <MemberLogin>3</MemberLogin>
        <Store>0181</Store>
    </result>
    <result>
        <MemberFirstName>DAVID</MemberFirstName>
        <MemberLastName>GREEN</MemberLastName>
        <MemberLogin>4</MemberLogin>
        <Store>0183</Store>
    </result>
</results>

In XSLT 1.0, I want to group by and create a table for employees in each store. so in the above data, 3 tables would be created. A table with two rows for the first 2 records (store 180), etc..

How can I do this in XSLT 1.0?

<table id="table">
  <tr class="heading">
    <th scope="col">Member Id</th>
    <th scope="col">First Name</th>
    <th scope="col">Last Name</th>
  </tr>
  <xsl:for-each select="results/result">
    <tr>
      <td><xsl:value-of select="MemberLogin"/></td>
      <td><xsl:value-of select="MemberFirstName"/></td>
      <td><xsl:value-of select="MemberLastName"/></td>
    </tr>
  </xsl:for-each>
</table>