<script type="text/javascript"> <![CDATA[
    function addClickEvents() {
        var countries = document.getElementById('svg1926').childNodes;
        var i;
        for (i=0;i<countries.length;i++){
            countries[i].addEventListener('click', showCountry);
        }
    }

    function showCountry(e) {
        var node = e.target;
        if (node.id != 'ocean') {
            node = getCorrectNode(node);
        }
        alert(node.id);
    }

    function getCorrectNode(node) {
        if (node.id.length == 2 || node.id == 'lakes') {
            return node;
        }
        return getCorrectNode(node.parentNode);
    }
]]> </script>