function upgradeArchiveSelector() {
	//Remove the submit button
	var btn = $('as_submit');
	btn.parentNode.removeChild(btn);
	
	//Add the onclick event to submit the form when a show is chosen from the dropdown
	var selector = $('as_select');
	var form = $('as_form');
	selector.onchange = function() {
		if (selector.value != '') form.submit();
	}
}


//Alternate background colours on Hot Item list elements
function upgradeHotItems() {
	var links = $('hotItems').getElementsByTagName('LI');
	for (var i = 0; i < links.length; i++) {
		if ((i+1)%2) { //odd number
			addClassName(links[i], 'odd');
		}
	}
}

function checkPostNav() {
	if (!$('previousPage') && !$('nextPage')) {
		$('postNav').style.display = 'none';
	}
}