drawGeometry: function(geometry, style, featureId) {
        var rendered = false;
        if (geometry instanceof OpenLayers.Geometry.Point) {
            var node = document.getElementById(featureId);
            if (node) {
                if (style.display != "none") {
                    var resolution = this.getResolution();
                    var x = (geometry.x / resolution + this.left);
                    var y = (this.top - geometry.y / resolution);
                    node.style.left = parseInt(x) + "px";
                    node.style.top = parseInt(y) + "px";
                    rendered = true;
                }
            } else {
                if (style.display == "none") { return rendered; }
                node = document.createElement("a");
                node.setAttribute('href', '#');
                node.id = featureId;
                node._featureId = featureId;
                if (style.cssClass === 'cluster') {
                    var len = ("" + style.label).length;
                    node.className = style.cssClass + " cluster-" + len;
                } else {
                    node.className = style.cssClass;
                }
                var resolution = this.getResolution();
                var x = (geometry.x / resolution + this.left);
                var y = (this.top - geometry.y / resolution);
                var idx = node.id.substr(node.id.lastIndexOf('_')+1, node.id.length);
                // TODO see if there is no cleaner way to differentiate
                if (style.cssClass === 'cluster') {
                    node.innerHTML = '<span>'+idx+'</span>';
                } else {
                    node.innerHTML = idx;
                }
                node.style.left = parseInt(x) + "px";
                node.style.top = parseInt(y) + "px";
                this.root.appendChild(node);
                rendered = true;
            }
            if (rendered == false) {
                this.root.removeChild(node);
            }
            return rendered;
        }
    }