function displayParts(num, total)
{
	var i = 1;
	
	for(i=1; i<=num; i++)
	{
		document.getElementById("part_" + i).style.display = "block";
	}

	for(i=Number(num)+1; i<=total; i++)
	{
		document.getElementById("part_" + i).style.display = "none";
	}
}