function external_init() {
	var a;
	var f;
	var node;

	if(!document.getElementsByTagName) return;
	
	a = document.getElementsByTagName("a");

	for(i = 0; i < a.length; i++) {
		if(!a[i].getAttribute("href") ||
		   a[i].getAttribute("rel") != "external") continue;
		a[i].target = "_blank";
	}

	f = document.getElementsByTagName("form");

	for(i = 0; i < f.length; i++) {
		if(f[i].className != "external") continue;
		f[i].target = "_blank";
	}
}

function init_all() {
	external_init();
}

window.onload = init_all;