var allLinks = document.getElementsByTagName('a');
for(var i = 0; i < allLinks.length; i++)
{
	if(allLinks[i].className == 'external')
	{
		allLinks[i].onclick = function()
		{
			window.open(this.href);
			return false;
		}
	}
	else if(allLinks[i].className == 'xexternal')
	{
		allLinks[i].onclick = function()
		{
			var xwindow = window.open();
			xwindow.opener = null;
			xwindow.location.replace(this.href);
			return false;
		}
	}
}