$(document).ready(function() {
	if ($('#content').length > 0) vertical_center();
});

function vertical_center() {
	var h = 280;
	
	$(window).bind('resize', function () {
		if ($(window).height() < h) {
			$('#content').attr('class','short');
		} else {
			$('#content').attr('class','tall');
		}
	});
}