(function(){
  var tmp = document.getElementsByTagName("iframe");
  var bscount = 0;
  for( var i = 0; i < tmp.length; i++ ){
    if(tmp[i].className == "bs-iframes"){
      bscount++;
    }
  }
  if(bscount >= 3){
    return;
  }
  var src = "http://tategakibunko.mydns.jp/cgi-bin/bungou/bookshelf.fcgi";
  var w = 400;
  var h = 300;
  if(typeof bs_width != "undefined"){
    w = bs_width;
  }
  if(typeof bs_height != "undefined"){
    h = bs_height;
  }
  if(typeof bsid != "undefined"){
    src += "/" + bsid + "?w=" + w + "&h=" + h;
    document.open();
    document.write(["<iframe class='bs-iframes' allowtransparency=true frameborder=0",
		    "style='margin:0; padding:0; width:" + (w+5) + "px; height:" + (h+50) + "px;'",
		    "src='" + src + "'></iframe>"].join(" "));
    document.close();
  }
})()