var sp = new Object()


$(window).ready(function(){
	
	sp = new syoukai();
	sp.ready();
	
})

$(window).load(function(){
	sp.loaded();
})

var syoukai = function(){
	
	var obj
	
	this.ready = function(){
		obj = $(".shokai")
		$(obj).css("display","none")
	}
	
	this.loaded = function(){
		var num = Math.floor(Math.random()*9);
		$(obj[num]).css("display","block")
	}
	
	
}