function randombanner(baseUrl) {

	var Num = new Array();
	var Chk = new Array();
	var Shop = new Array();
	var Img = new Array();
	var Url = new Array();


	        Shop[0]="AV女優ブログポータル-イーブログ-";
			Shop[1]="AVアイドル個人撮影会アミーゴ！";
			
			Img[0]=baseUrl+"http://www.nyoro.info/img/bnyoro.jpg";
			Img[1]=baseUrl+"images/ad/amigo.jpg";
			
			Url[0]="http://www.nyoro.info";
			Url[1]="http://www.amigo-girl.com/";

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


	for (i=0;i<Img.length;i++) //
	{
		document.write('<a href="'+Url[Num[i]]+'" target="_blank"><img class="no_border" src="'+Img[Num[i]]+'" alt="'+Shop[Num[i]]+'"  width="289"></a>');
	}

}