window.addEvent('domready',function() {
	$$('a.external, a[rel=external]').each(function(el,indx) {
		el.target = "_blank";
	});
});
Element.extend({
	show: function() {
		this.setStyle('display','');
	},
	hide: function() {
		this.setStyle('display','none');
	},
	toggle: function() {
		this.setStyle('display',(this.getStyle('display') == "none") ? '': 'none');
	}
});