function sendDate(uri) {
		      //var url=uri+"servlet/CarByIdServlet?";
	//var url = uri + "cars.xml";
	var url = "cars.xml";
	//var brand = Form.Element.serialize("brand");
	//var catena = Form.Element.serialize("catena");
	//var model = Form.Element.serialize("model");
	var params = 0;
	//if ((Form.Element.getValue("catena") != "" || Form.Element.getValue("catena").length > 0)) {
	//	params += "&" + catena;
	//}
	//if ((Form.Element.getValue("model") != "" || Form.Element.getValue("model").length > 0)) {
	//	params += "&" + model;
	//}
	var sendRequest = new Ajax.Request(url, {method:"GET", parameters:params, onComplete:showResponse, asynchronous:true});
}
function showResponse(request) {
	var obj = request.responseXML;
	var xmlobj = obj.getElementsByTagName("ROW");
	var brand = document.getElementById("brand");
	var catena = document.getElementById("catena");
	var model = document.getElementById("model");
	if(brand.value.length==1 && catena.value.length==1 && model.value.length==1){
			var  typeElements=obj.getElementsByTagName("CAR_TYPE_ID");
		    for(i=0;i<typeElements.length;i++){
			  var option = document.createElement("option");
			  var txtNode = document.createTextNode(typeElements[i].getAttribute("ID").substr(0,1).toUpperCase()+' '+typeElements[i].getAttribute("NAME"));
				option.setAttribute("value", typeElements[i].getAttribute("ID"));
				option.appendChild(txtNode);
				brand.appendChild(option);        
			}
		}
	for (var i = 0; i < xmlobj.length; i++) {
		if(brand.value.length<=4 && catena.value.length==1 && model.value.length==1){
			var carId = xmlobj[i].getAttribute("CAR_ID");
			var catTypeId= xmlobj[i].getAttribute("CAR_TYPE_ID");
			var carParentId=xmlobj[i].getAttribute("CAR_PARENT_ID");
			var carCnName=xmlobj[i].getAttribute("CAR_CN_NAME");
			if (carId.length <= 4 && brand.value==catTypeId) {
				var option = document.createElement("option");	
				var txtNode = document.createTextNode(xmlobj[i].getAttribute("CAR_CN_NAME"));
				option.setAttribute("value", xmlobj[i].getAttribute("CAR_ID"));
				option.appendChild(txtNode);
				catena.appendChild(option);
					for (var j = 0; j < xmlobj.length; j++) {
							var carSeriId = xmlobj[j].getAttribute("CAR_ID");
							var carSeriParentId=xmlobj[j].getAttribute("CAR_PARENT_ID");
							var carSeriCnName=xmlobj[j].getAttribute("CAR_CN_NAME");	
							if(carId==carSeriParentId){					
										var option2 = document.createElement("option");	
										var txtNode2 = document.createTextNode("  "+carSeriCnName);
										option2.setAttribute("value", carSeriId);
										option2.appendChild(txtNode2);
										catena.appendChild(option2);
					}
					
			}
		}
	}
   if(brand.value.length<=4 && catena.value.length==8 && model.value.length==1){
       	  if (xmlobj[i].getAttribute("CAR_ID").length == 14 && catena.value==xmlobj[i].getAttribute("CAR_PARENT_ID")) {
	       		var option = document.createElement("option");		
				var txtNode = document.createTextNode(xmlobj[i].getAttribute("CAR_CN_NAME"));
				option.setAttribute("value", xmlobj[i].getAttribute("CAR_ID"));
				option.appendChild(txtNode);
				model.appendChild(option);
			}
		}
	}

}
function getCar(obj, uri) {
	var brand = document.getElementById("brand");
	var catena = document.getElementById("catena");
	var model = document.getElementById("model");
	if (obj != null) {
		if (obj.id == "brand") {
			for (var i = catena.length - 1; i >= 1; i--) {
				catena.options[i] = null;
			}
			for (var i = model.length - 1; i >= 1; i--) {
				model.options[i] = null;
			}
		}
		if (obj.id == "catena") {
			for (var i = model.length - 1; i >= 1; i--) {
				model.options[i] = null;
			}
		}
	}
	if (obj.selectedIndex != 0) {
		sendDate(uri);
	}
}