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();
	var SDmode2 = new scrollDoor();
    SDmodel.sd(["hy01","hy02","hy03","hy04"],["hy_01","hy_02","hy_03","hy_04"],"hy_a","hy_b");
	SDmode2.sd(["dt01","dt02","dt03","dt04","dt05","dt06","dt07","dt08","dt09","dt10"],["dt_01","dt_02","dt_03","dt_04","dt_05","dt_06","dt_07","dt_08","dt_09","dt_10"],"dt_a","dt_b");
}