programming is hard

Simple FOR Loop

var hour;
var ampm;
		
for (hour=1; hour<24; hour++)
{
	if (hour < 12) {ampm="am"}
	if (hour >= 12) {amppm="pm"}

	if (hour < 13)
	{
		document.write(hour + ampm)
	}
	else
	{
		document.write((hour-12) + ampm)
	}
		
	document.write("
");
}