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]).onmouseover = 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(["t211","t212","t213"],["c211","c212","c213"],"on","out");
	SDmodel.sd(["t311","t312","t313"],["c311","c312","c313"],"on","out");
}    
function SetHome(obj,vrl){ 
        try{ 
                obj.style.behavior='url(#default#homepage)';obj.setHomePage(vrl); 
        } 
        catch(e){ 
                if(window.netscape) { 
                        try { 
                                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");   
                        }   
                        catch (e) 
			{ 
                                alert("抱歉！您的浏览器不支持直接设为首页。请在浏览器地址栏输入“about:config”并回车然后将[signed.applets.codebase_principal_support]设置为“true”，点击“加入收藏”后忽略安全提示，即可设置成功。");   
                        } 
                        var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch); 
                        prefs.setCharPref('browser.startup.homepage',vrl); 
                 } 
        } 
}