function toggleShipTable() {
	var table = document.getElementById('shipDiv').style;
	
	if(table.display != 'block') {
		showShipTable();
	}
	else {
		hideShipTable();
	}
}

function hideShipTable() {
	var table = document.getElementById('shipDiv').style;
	var submit = document.getElementById('submit_bill').style;
	
	table.display = 'none';
	submit.display = 'inline';
}

function showShipTable() {
	var table = document.getElementById('shipDiv').style;
	var submit = document.getElementById('submit_bill').style;
	
	table.display = 'block';
	submit.display = 'none';
}

function toggleMessage(i) {
	if ($('messageDiv'+i).style.display != 'block') {
		showMessage(i);
	}
	else {
		hideMessage(i);
	}
}

function showMessage(i) {
	$('messageDiv'+i).style.display='block';
	$('messageLink'+i).innerHTML = 'hide message';
}

function hideMessage(i) {
	$('messageDiv'+i).style.display='none';
	$('messageLink'+i).innerHTML = 'view message';
}