function popin(left, top, milliseconds) {
	if (!shouldShowPopin()) return;
	var popin = $("#popin");
	popin.hide();
	popin.css('top', -popin.height()+'px');
	popin.css('left', left+'px');
	popin.show();
	popin.animate({ top: top, position: 'absolute'}, milliseconds);
}

function popout(milliseconds) {
	var popin = $("#popin");
	popin.hide();
}

function shouldShowPopin() {
	if ($.cookie('showPopin')=='false') {
		return false;
	}
	$.cookie('showPopin','false');
	return true;
}