function nii_draw_top_banner_jp6(){
	img = new Array();
	img[0] = "/userimg/mainimage01.jpg";
	img[1] = "/userimg/mainimage02.jpg";
	img[2] = "/userimg/mainimage03.jpg";
	img[3] = "/userimg/mainimage04.jpg";
	img[4] = "/userimg/mainimage05.jpg";
	img[5] = "/userimg/mainimage06.jpg";

	n = Math.floor(Math.random()*img.length);
	m= n + 1 ;
	document.write("<table cellspacing=\"0\" cellpadding=\"0\" border=\"0\" class=\"nii_w100per\">");
	document.write("<tbody>");
	document.write("<tr>");
	document.write("<td class=\"nii_mainImage\" style=\"background-image:url("+ img[n] +  ");\">情報学研究所<\/td>");
	document.write("<\/tr>");
	document.write("<\/tbody>");
	document.write("<\/table>");
}

function nii_draw_top_banner_jp5(){
	img = new Array();
	img[0] = "/userimg/mainimage01.jpg";
	img[1] = "/userimg/mainimage02.jpg";
	img[2] = "/userimg/mainimage03.jpg";
	img[3] = "/userimg/mainimage04.jpg";
	img[4] = "/userimg/mainimage05.jpg";
	
	n = Math.floor(Math.random()*img.length);
	m= n + 1 ;
	document.write("<table cellspacing=\"0\" cellpadding=\"0\" border=\"0\" class=\"nii_w100per\">");
	document.write("<tbody>");
	document.write("<tr>");
	document.write("<td class=\"nii_mainImage\" style=\"background-image:url("+ img[n] +  ");\">情報学研究所<\/td>");
	document.write("<\/tr>");
	document.write("<\/tbody>");
	document.write("<\/table>");
}

function nii_draw_top_banner_en(){
	img = new Array();
	img[0] = "/userimg/mainimage01_en.jpg";
	img[1] = "/userimg/mainimage02_en.jpg";
	img[2] = "/userimg/mainimage03_en.jpg";
	img[3] = "/userimg/mainimage04_en.jpg";
	img[4] = "/userimg/mainimage05_en.jpg";
	img[5] = "/userimg/mainimage06_en.jpg";

	n = Math.floor(Math.random()*img.length);
	m= n + 1 ;
	document.write("<table cellspacing=\"0\" cellpadding=\"0\" border=\"0\" class=\"nii_w100per\">");
	document.write("<tbody>");
	document.write("<tr>");
	document.write("<td class=\"nii_mainImage\" style=\"background-image:url("+ img[n] +  ");\">情報学研究所<\/td>");
	document.write("<\/tr>");
	document.write("<\/tbody>");
	document.write("<\/table>");
}