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(["doorT1_1","doorT1_2"],["doorB1_1","doorB1_2"],"on","out");
	SDmodel.sd(["doorT2_1","doorT2_2"],["doorB2_1","doorB2_2"],"on","out");
	SDmodel.sd(["doorT3_1","doorT3_2"],["doorB3_1","doorB3_2"],"on","out");
	SDmodel.sd(["doorT4_1","doorT4_2","doorT4_3"],["doorB4_1","doorB4_2","doorB4_3"],"on","out");
	SDmodel.sd(["doorT5_1","doorT5_2"],["doorB5_1","doorB5_2"],"on","out");
	SDmodel.sd(["doorT6_1","doorT6_2","doorT6_3","doorT6_4","doorT6_5","doorT6_6"],["doorB6_1","doorB6_2","doorB6_3","doorB6_4","doorB6_5","doorB6_6"],"on","out");
	
	SDmodel.sd(["doorT7_1","doorT7_2"],["doorB7_1","doorB7_2"],"on","out");
}