使用数组保存下拉列表选项

function test(){
        var oneArray=new Array();
        oneArray["first"]="firstValue";
        oneArray["second"]="secondValue";
        
        
        oneDrapList=document.createElement("select");
        
        for(att in oneArray){
            var oneOption=document.createElement("option");
            oneOption.text=oneArray[att]
            oneOption.value=att;
            try{
                oneDrapList.add(oneOption,null);
                }
            catch(ex){
                oneDrapList.add(oneOption);
                }
            }
}