function scrollDoor(){}
scrollDoor.prototype = {
sd : function(menus,divs,openClass,closeClass){
var _this = this;
if(menus.length != divs.length){
alert("菜单层数量和内容层数量不一样!");
return false;}
for(var i = 0 ; i < menus.length ; i++){
_this.$(menus[i]).value = i;
_this.$(menus[i]).onclick= function(){
for(var j = 0 ; j < menus.length ; j++){
_this.$(menus[j]).className = closeClass;
_this.$(divs[j]).style.display = "none";}
_this.$(menus[this.value]).className = openClass;
_this.$(divs[this.value]).style.display = "block";}}},
$ : function(oid){
if(typeof(oid) == "string")
return document.getElementById(oid);
return oid;}}
window.onload = function(){
var SDmodel = new scrollDoor(); 
SDmodel.sd(["m01","m02","m03","m04","m05","m06"],["c01","c02","c03","c04","c05","c06"],"sd01","sd02");}