<html>
<head>
<script language="javascript">
<!--

SVG_NS = 'http://www.w3.org/2000/svg';

function pathFromStar (radius, innerRadius, sides) {
    var path = [];
    for (var i = 0; i < sides * 2; ++i) {
        var theta = Math.PI * i / sides + (Math.PI / 2);
        var r = (i % 2) ? radius : innerRadius;
        var x = r * Math.cos(theta);
        var y = r * Math.sin(theta);
        path.push((i ? 'L' : 'M'), x, y);
    }
    path.push('Z');
    return path.join(' ');
}

function newSvgElement (tagName, parentNode, attrs) {
    var node = document.createElementNS(SVG_NS, tagName);
    if (attrs) {
        for (var k in attrs) {
            node.setAttribute(k, attrs[k]);
        }
    }
    if (parentNode) {
        parentNode.appendChild(node);
    }
    return node;
}

function setCenterPosition (node, x, y) {
    node.setAttribute('transform', 'translate($1, $2)'
        .replace('$1', x)
        .replace('$2', y));
}

window.addEventListener('load', function () {

    var svgContainer = newSvgElement('svg', document.body);
    var shapes = [
        { pos: [ 100, 100 ], size: 60 },
        { pos: [ 250, 100 ], size: 60 },
        { pos: [ 400, 100 ], size: 50 }
    ];
    for (var i = 0; i < shapes.length; ++i) {
        var shape = shapes[i];
        var node = newSvgElement('path', svgContainer, {
            d: pathFromStar(shape.size, shape.size / 2, 5),
            fill: '#999',
            stroke: 'purple',
            'stroke-width': 10,
        });
        setCenterPosition(node, shape.pos[0], shape.pos[1]);
        node.id = 'svg';
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});

//-->
</script>

<style>
    #svg {
        -webkit-svg-shadow: 5px 5px 5px #888;
    }
</style>
</head>
<body>
</body>
</html>