trg = 'TARGET="_blank"';
url = new Array();
img = new Array();
imp = new Array();
p   = new Array();
doc = new Array();
var p_max;

p_max = 10;
<!-- 楽天 100x60-->
url[0] = "http://px.a8.net/svt/ejp?a8mat=O0C5N+CXKZUA+5WS+CIBF5";img[0] = "http://www22.a8.net/svt/bgt?aid=040326539782&wid=001&eno=01&mid=s00000000766002101000&mc=1";imp[0]="http://www15.a8.net/0.gif?a8mat=O0C5N+CXKZUA+5WS+CIBF5";
<!-- 楽天Book 100x60-->
url[1] = "http://px.a8.net/svt/ejp?a8mat=O4ABE+B7NWXE+1N6+6E71D";img[1] = "http://www24.a8.net/svt/bgt?aid=040510778678&wid=001&eno=01&mid=s00000000213001074000&mc=1";imp[1]="http://www12.a8.net/0.gif?a8mat=O4ABE+B7NWXE+1N6+6E71D";


url[6] = "http://hb.afl.rakuten.co.jp/hsc/0926ee3b.e6f8c08d.0926ee3f.4472ca24/";img[6] = "http://hbb.afl.rakuten.co.jp/hsb/0926ee3b.e6f8c08d.0926ee3f.4472ca24/";imp[6]="";

<!-- アパマン 100x60-->
url[2] = "http://px.a8.net/svt/ejp?a8mat=U8V6P+1E0FLE+LFO+5ZEMP";img[2] = "http://www24.a8.net/svt/bgt?aid=050802145084&wid=001&eno=01&mid=s00000002778001005000&mc=1";imp[2]="http://www17.a8.net/0.gif?a8mat=U8V6P+1E0FLE+LFO+5ZEMP";

<!-- アイドリーム 120x60-->
url[3] = "http://px.a8.net/svt/ejp?a8mat=1BV9YG+CQFSKY+B5Y+61RI9";img[3] = "http://www21.a8.net/svt/bgt?aid=080401192770&wid=001&eno=01&mid=s00000001447001016000&mc=1";imp[3]="http://www10.a8.net/0.gif?a8mat=1BV9YG+CQFSKY+B5Y+61RI9";
<!-- NewsWeek 120x60-->
url[4] = "http://px.a8.net/svt/ejp?a8mat=1BV9YG+CIP5PU+1C1G+5ZU29";img[4] = "http://www22.a8.net/svt/bgt?aid=080401192757&wid=001&eno=01&mid=s00000006226001007000&mc=1";imp[4]="http://www10.a8.net/0.gif?a8mat=1BV9YG+CIP5PU+1C1G+5ZU29";

<!-- ぐるなび 100 x 60-->
url[5] = "http://px.a8.net/svt/ejp?a8mat=1HTYCQ+95U5WY+1HIO+6C1VL";img[5] = "http://www23.a8.net/svt/bgt?aid=090417194554&wid=001&eno=01&mid=s00000006936001064000&mc=1";imp[5]="http://www17.a8.net/0.gif?a8mat=1HTYCQ+95U5WY+1HIO+6C1VL";


<!-- 全巻 100 x 60-->
url[7] = "http://px.a8.net/svt/ejp?a8mat=1HW361+1SBLE+1892+61C2P";img[7] = "http://www28.a8.net/svt/bgt?aid=090516745003&wid=001&eno=01&mid=s00000005735001014000&mc=1";imp[7]="http://www15.a8.net/0.gif?a8mat=1HW361+1SBLE+1892+61C2P";



<!-- キャラアニ 120 x 60-->
url[8] = "http://px.a8.net/svt/ejp?a8mat=1HW361+5CX82+AIM+65EOH";img[8] = "http://www23.a8.net/svt/bgt?aid=090516745009&wid=001&eno=01&mid=s00000001363001033000&mc=1";imp[8]="http://www19.a8.net/0.gif?a8mat=1HW361+5CX82+AIM+65EOH";




p[0] = Math.round(Math.random() * (url.length - 1));

for(var i=0;i <= p_max;i++){
  p[i]=p[0]+i;
  if(p[i] > p_max){
    p[i] = p[i]-(p_max+1);
  }

  var rand_seed = Math.floor(Math.random()*10+1);
  if  (rand_seed == 4){
    doc[i] = "<a href='" + url[p[i]] + "' " + trg + "><img src='" + img[p[i]] + "' border=0 alt=\"ClickMe!!\" onMouseOver=window.open('"+ url[p[i]]+"','','')></a><img src='" + imp[p[i]] + "' width=0 height=0 border=0><BR>";}
  else{
    doc[i] = "<a href='" + url[p[i]] + "' " + trg + "><img src='" + img[p[i]] + "' border=0 alt=ClickMe!!></a><img src='" + imp[p[i]] + "' width=0 height=0 border=0><BR>";
  }
}

document.write(doc[0]);