function showPage(url) {
	var hp=$('htmlpopup');

	hp.empty();

	var el=new Element('iframe', {
						'width': 970,
						'height': 615,
						'frameborder': 0,
						'src': '/'+url
					});

	el.inject(hp);
	hp.setStyle('display', 'block');
}
	
function clearPopup() {
	var hp=$('htmlpopup');

	hp.setStyle('display', 'none');
	hp.empty();
}