function setUpNewWindow()
{
	if (readCookie("new_window") == "yes")
	{
		addWindowOpeners();
	}
}

function addWindowOpeners()
{
	var a = document.getElementsByTagName("a");

	for (var i = 0; i < a.length; i++)
	{
		if (a[i].className == "external")
		{
			a[i].onclick = function() { window.open(this.href); return false; }
		}
	}
}

function readCookie(search_name)
{
	var cookies = document.cookie.split(";");

	for (var i = 0; i < cookies.length; i++)
	{
		var cookie_crumbs = cookies[i].split("=");
		var cookie_name = cookie_crumbs[0];
		var cookie_value = cookie_crumbs[1];

		if (cookie_name == search_name)
		{
			return cookie_value;
		}
	}

	return false;
}

addLoadEvent(setUpNewWindow);