function showson(obj,n){
	$(".sonmenu").hide(1000);
	$("#son"+n).show(1000);
	$("div .menulink a").removeClass("now");
	//$("#father"+n+ " a").addClass("now");
	$("#father"+n).addClass("now");
}

$(document).ready(function(){
	$("#n01").mouseover(function(){
		$("#n01").attr("src","/images/head_01_on.jpg");
	});
	$("#n02").mouseover(function(){
		$("#n02").attr("src","/images/head_02_on.jpg");
	});
	$("#n03").mouseover(function(){
		$("#n03").attr("src","/images/head_03_on.jpg");
	});
	$("#n04").mouseover(function(){
		$("#n04").attr("src","/images/head_04_on.jpg");
	});
	$("#n05").mouseover(function(){
		$("#n05").attr("src","/images/head_05_on.jpg");
	});
	$("#n06").mouseover(function(){
		$("#n06").attr("src","/images/head_06_on.jpg");
	});
	$("#n07").mouseover(function(){
		$("#n07").attr("src","/images/head_07_on.jpg");
	});
	
	$("#n01").mouseout(function(){
		$("#n01").attr("src","/images/head_01.jpg");
	});
	$("#n02").mouseout(function(){
		$("#n02").attr("src","/images/head_02.jpg");
	});
	$("#n03").mouseout(function(){
		$("#n03").attr("src","/images/head_03.jpg");
	});
	$("#n04").mouseout(function(){
		$("#n04").attr("src","/images/head_04.jpg");
	});
	$("#n05").mouseout(function(){
		$("#n05").attr("src","/images/head_05.jpg");
	});
	$("#n06").mouseout(function(){
		$("#n06").attr("src","/images/head_06.jpg");
	});
	$("#n07").mouseout(function(){
		$("#n07").attr("src","/images/head_07.jpg");
	});
	
	
	$("#cn01").mouseover(function(){
		$("#cn01").attr("src","/images/headcn_01_on.jpg");
	});
	$("#cn02").mouseover(function(){
		$("#cn02").attr("src","/images/headcn_02_on.jpg");
	});
	$("#cn03").mouseover(function(){
		$("#cn03").attr("src","/images/headcn_03_on.jpg");
	});
	$("#cn04").mouseover(function(){
		$("#cn04").attr("src","/images/headcn_04_on.jpg");
	});
	$("#cn05").mouseover(function(){
		$("#cn05").attr("src","/images/headcn_05_on.jpg");
	});
	$("#cn06").mouseover(function(){
		$("#cn06").attr("src","/images/headcn_06_on.jpg");
	});
	$("#cn07").mouseover(function(){
		$("#cn07").attr("src","/images/headcn_07_on.jpg");
	});
	
	$("#cn01").mouseout(function(){
		$("#cn01").attr("src","/images/headcn_01.jpg");
	});
	$("#cn02").mouseout(function(){
		$("#cn02").attr("src","/images/headcn_02.jpg");
	});
	$("#cn03").mouseout(function(){
		$("#cn03").attr("src","/images/headcn_03.jpg");
	});
	$("#cn04").mouseout(function(){
		$("#cn04").attr("src","/images/headcn_04.jpg");
	});
	$("#cn05").mouseout(function(){
		$("#cn05").attr("src","/images/headcn_05.jpg");
	});
	$("#cn06").mouseout(function(){
		$("#cn06").attr("src","/images/headcn_06.jpg");
	});
	$("#cn07").mouseout(function(){
		$("#cn07").attr("src","/images/headcn_07.jpg");
	});
});