function FillDropDown(){

  var xmlDoc=this.req.responseXML;
  var strFName=xmlDoc.documentElement.getAttribute("formName");
  var strEName=xmlDoc.documentElement.getAttribute("formElem");

  var objDDL=document.forms[strFName].elements[strEName];
  objDDL.options.length=0;

  var xRows=xmlDoc.getElementsByTagName('entry');
  for(i=0;i<xRows.length;i++){
    var theText=xRows[i].getAttribute("optionText");
    var theValue=xRows[i].getAttribute("optionValue");
    var option = new Option(theText,theValue);
  
    try{
      objDDL.add(option,null);
    }catch(e){
      objDDL.add(option,-1);
    }
  }

}

function FillModels(oElem,oTarget,home_url){
  oTarget.options.length=0;
  var option = new Option('Loading...','0');
  try{
    oTarget.add(option,null);
  }catch(e){
    oTarget.add(option,-1);
  }

  var strValue=oElem.options[oElem.selectedIndex].value;
  var url = "/brandsxml.php";
  var strParams = "q=" + strValue + "&f=" + oTarget.form.name + "&e=" + oTarget.name;
  var loader1 = new net.ContentLoader(url,FillDropDown,null,"POST",strParams);
}