private DomElement createColumnHeaders(String[] headers) {
        DomElement divHead = new DomElement("thead");
        DomElement rowHead = divHead.addChild("tr");
        divHead.setCssStyle(CSS_STYLE_HEAD);
        for (String column : headers) {
            DomElement columnHead = rowHead.addChild("th");
            columnHead.setCssStyle(CSS_STYLE_COLUMN_HEADER);
            columnHead.setContent(column);
        }
        return divHead;
    }