my_pics=new Array();

	//ランダムで像を表示きりかえ
	my_pics[0]='images/menu-img01_03.jpg';
	my_pics[1]='images/menu-img02_03.jpg';
	my_pics[2]='images/menu-img03_03.jpg';

	function jikan_pic()
		{
		a=Math.floor(Math.random()*my_pics.length);
		document.images["mypic"].src=my_pics[a];
		}
		
		function open_menu2(){
    var nWin4=window.open("menu2.html","","width=630,height=700,toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes");
    nWin4.window.focus();
  }