<ons-button id="thisone" onclick="showPopover$name(this)">Click me</ons-button>

<ons-popover direction="down" id="$name">
  <div style="padding: 10px; text-align: center;">
    <p>
      This is a popover
    </p>
    <p>
      <ons-button onclick="hidePopover$name()">Close</ons-button>
    </p>
  </div>
</ons-popover>