if (getCookie("bbs_show") == "trackback")
	change("trackback");

function change(chgid){
	if(chgid == "trackback") {
		//alert("trackback");
		document.all.base.style.visibility = "hidden";
		document.all.base.style.display = "none";
		document.all.trackback.style.visibility = "visible";
		document.all.trackback.style.display = "";

		var trb2 = document.all.b_trackback.innerHTML;
		trb2 = trb2.replace(trb2, "<b>"+trb2+"</b>");
		document.all.b_trackback.innerHTML = trb2;

		var base2 = document.all.b_base.innerHTML;
		if(base2.indexOf("<B>") != -1 && base2.indexOf("</B>") != -1) {
			base2 = base2.substr(base2.lastIndexOf("<B>")+3, base2.indexOf("</B>"));
		}
		document.all.b_base.innerHTML = base2;
	
		setCookie ("bbs_show", "trackback");
	}
	else {
		//alert("base");
		document.all.base.style.visibility = "visible";
		document.all.base.style.display = "";
		document.all.trackback.style.visibility = "hidden";
		document.all.trackback.style.display = "none";

		var base2 = document.all.b_base.innerHTML;
		base2 = base2.replace(base2, "<b>"+base2+"</b>");
		document.all.b_base.innerHTML = base2;

		var trb2 = document.all.b_trackback.innerHTML;
		if(trb2.indexOf("<B>") != -1 && trb2.indexOf("</B>") != -1) {
			trb2 = trb2.substr(trb2.lastIndexOf("<B>")+3, trb2.indexOf("</B>"));
		}
		document.all.b_trackback.innerHTML = trb2;

		setCookie ("bbs_show", "bbs");
	}
}

function setCookie (name, value) {
	document.cookie = name + "=" + value + "; path=/; domain=chosun.com;";
}

function getCookie (name) {
	var pcookie = document.cookie.split("; ");
	for (var i=0; i < pcookie.length; i++)
	{
		var values = pcookie[i].split("=");
		if (name == values[0])
			return unescape(values[1]);
	}

	return null;
}

function delCookie (name) {
	var expireDate = new Date();
	expireDate.setDate(expireDate.getDate()-1);
	document.cookie = name + "=; path=/; expires=" + expireDate.toGMTString() + "; domain=chosun.com;";
}