jmpURL = new Array();
imgURL = new Array();
imgALT = new Array();
jmpURL[0] = "/service/data-c.html";
jmpURL[1] = "/service/mobile_internet.html";
jmpURL[2] = "/service/network_ser/03.html";
imgURL[0] = "top_img_dataconnect.jpg";
imgURL[1] = "top_img_mobile.gif";
imgURL[2] = "top_img_bcp.gif";
imgALT[0] = "「データコネクト」対応サービス開始";
imgALT[1] = "モバイルインターネット for Biz";
imgALT[2] = "BCP対応メニュー";

n = Math.floor(Math.random()*jmpURL.length);
if (jmpURL[n].length > 0) {
	document.write("<a href='"+jmpURL[n]+"'>");
}
document.write("<img src='/common/images/"+imgURL[n]+"' width='720' height='200' alt='"+imgALT[n]+"'/>");
if (jmpURL[n].length > 0) {
	document.write("<\/a>");
}