ASSETSWEB.AssetsQuery = function() {
    var thiz = {
        toXml: function() {
        var xmlNodes = new Array(); 
            xmlNodes.push('<assetsquery>');
            if (myChkBoxTree) {
                if (myChkBoxTree.isHistoricBridgesSelected()) {
                    //concat() does not seem to work here??
                    xmlNodes.push(myChkBoxTree.toXmlNodes().join('\n'));
                }
            }
            
            if (myPanel) {

                if (myPanel.isActiveBridgesSelected()) {
                    xmlNodes.push(myPanel.createActiveXmlNodes().join('\n'));

                } // end if

            } // end if

            xmlNodes.push('</assetsquery>');
            return xmlNodes.join('\n');

        }
    }
    return thiz;
} ();