var vMainMenus = new Array();

    function initMainList(mainList){
        for (i = 0; i < vMainMenus.length; ++i) {
            var opt=new Array();
            opt=vMainMenus[i][0].split(":");
            mainList.options[i] = new Option(opt[0], opt[1]);
        }
    }
    
    function initSubList(mainList,subList){
        var idx = mainList.selectedIndex;
        var subs = vMainMenus[idx];
        subList.length = 0;
        for (var i = 0, j = 1; j < subs.length; ++i, ++j) {
            var opt=new Array();
            opt=subs[j].split(":");
            subList.options[i] = new Option(opt[0], opt[1]);
        }
    }
    
    function load(mainList,subList){
        initList();
        initMainList(mainList);
        initSubList(mainList,subList);
    }

    function initContent(objName){
        //obj=document.getElementById(objName);
        //obj.innerHTML=getHtmlStr(obj.value);
    }