// JavaScript Document
function RandomBn(x) {
f = 2;

var Num = new Array(f - 1);
var Chk = new Array(f - 1);
var Mess = new Array(f - 1);

Mess[0] = '<a href="http://click.linksynergy.com/fs-bin/click?id=5T9mD14GLjk&offerid=39250.10000154&type=4&subid=0"><IMG alt="デル株式会社" border="0" src="http://img.dell.com/images/jp/banners/banners_l/dell_468x60_b1.gif"></a><IMG border="0" width="1" height="1" src="http://ad.linksynergy.com/fs-bin/show?id=5T9mD14GLjk&bids=39250.10000154&type=4&subid=0">';
Mess[1] = '<IFRAME frameBorder="0" allowTransparency="true" height="60" width="468" marginHeight="0" scrolling="no" src="http://ad.jp.ap.valuecommerce.com/servlet/htmlbanner?sid=2211879&pid=874813588" MarginWidth="0"><script Language="javascript" Src="http://ad.jp.ap.valuecommerce.com/servlet/jsbanner?sid=2211879&pid=874813588"></script><noscript><a Href="http://ck.jp.ap.valuecommerce.com/servlet/referral?sid=2211879&pid=874813588" target="_blank" ><img Src="http://ad.jp.ap.valuecommerce.com/servlet/gifbanner?sid=2211879&pid=874813588" height="60" width="468" Border="0" /></a></noscript></IFRAME>';


for (i=0;i<f;i++)
{
	Num[i] = Math.floor(Math.random()*f);
	if (Chk[Num[i]]  == 1){
		while(Chk[Num[i]] == 1){
		Num[i] = Math.floor(Math.random()*f);
			}
			Chk[Num[i]] = 1;
		}
		else {
			Chk[Num[i]] = 1;
		}
	}
	

	for (i=0;i<x;i++) //
	{
		document.write('<div id="top_banar">');
		document.write(Mess[Num[i]]);
		document.write("</div>");
	}
}