function showhide_box(a) {
	a = $(a);

	if(a.parentNode.className.indexOf("active") != -1) {
		a.parentNode.className = a.parentNode.className.replace("active", "");
		new Ajax.Request('index.php?action=ajax_hide_box&show=' + a.parentNode.id, { method: 'get' });
	}
	else {
		a.parentNode.className += " active";
		new Ajax.Request('index.php?action=ajax_hide_box&hide=' + a.parentNode.id, { method: 'get' });
	}

	return false;
}