function visible_change(){
	if(document.cookie.indexOf("isp=nifty", 0) < 0)
	{
		elms = document.getElementsByTagName("td");
		for(var i=0;i<elms.length;i++){
			if(elms[i].className == "invisible"){
				elms[i].style["display"] = "block";
			}
		}
	}
	
	if(document.cookie.indexOf("isp=biglobe", 0) < 0 && document.cookie.indexOf("isp=excite", 0) < 0 && document.cookie.indexOf("isRakuten=t", 0) < 0)
	{
		elms = document.getElementsByTagName("div");
		for(var i=0;i<elms.length;i++){
			if(elms[i].className == "invisible_lv2"){
				elms[i].style["display"] = "block";
			}
		}
	}
}