华安天气预报一周:谁帮我看看这个javascript代码

<SCRIPT language=JavaScript>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>作业</title>
<link rel="stylesheet" href="../作业/www.sdpei.edu.cn/include/index2.css" type="text/css">

function mmLoadMenus()
{
if (window.mm_menu_01) return;
window.mm_menu_01 = new Menu("root",100,18,"Arial, Helvetica, sans-serif",12,"#000000"/*字体颜色*/,"#FFFFFF"/*选中item的字体颜色*/,"#C2E1FB"/*菜单条的颜色*/,"#003399"/*选中菜单条的颜色*/,"center","middle",3,0,1000,-5,7,true,true,true,0,true,true);
mm_menu_01.addMenuItem("校长致词","window.open('ExtraSite/Introduction/xiaozhangzhici.asp', '_self');");
mm_menu_01.addMenuItem("学校简介","window.open('ExtraSite/Introduction/xueyuanjianjie.asp', '_self');");
mm_menu_01.addMenuItem("现任领导","window.open('ExtraSite/Introduction/lirenlingdao.asp', '_self');");
mm_menu_01.addMenuItem("校园风光","window.open('ExtraSite/Introduction/xiaoyuanfengguang.asp', '_self');");
mm_menu_01.hideOnMouseOut=true;
mm_menu_01.bgColor='#003399';//右下边框线和横线的颜色
mm_menu_01.menuBorder=1;
mm_menu_01.menuLiteBgColor='#FFFFFF';//左上边框颜色
mm_menu_01.menuBorderBgColor='#003399';//菜单外边框线的颜色

window.mm_menu_02 = new Menu("root",100,18,"Arial, Helvetica, sans-serif",12,"#000000","#FFFFFF","#C2E1FB","#003399","center","middle",3,0,1000,-5,7,true,true,true,0,true,true);
mm_menu_02.addMenuItem("党政管理机构","window.open('ExtraSite/ManageDept/dangzhengguanli.asp', '_self');");
mm_menu_02.addMenuItem("群众团体机构","window.open('ExtraSite/ManageDept/qunzhongtuanti.asp', '_self');");
mm_menu_02.addMenuItem("直属教辅机构","window.open('ExtraSite/ManageDept/zhishujiaofu.asp', '_self');");
mm_menu_02.hideOnMouseOut=true;
mm_menu_02.bgColor='#003399';
mm_menu_02.menuBorder=1;
mm_menu_02.menuLiteBgColor='#FFFFFF';
mm_menu_02.menuBorderBgColor='#003399';

writeMenus();
}
</SCRIPT>这是个向上下拉菜单的代码,谁能帮我看看 怎么改成想下拉的菜单!