function addClass()
{
	try
	{
		var win = window.open("EditClass.php", "_blank", "width=675,height=500,scrollbars=no,resizable=yes,status=yes");
		win.focus();
	}
	catch (ex)
	{
		alert(ex);
	}
}

function editClass(id)
{
	try
	{
		var win = window.open("EditClass.php?class_id="+id, "_blank", "width=675,height=500,scrollbars=no,resizable=yes,status=yes");
		win.focus();
	}
	catch (ex)
	{
		alert(ex);
	}
}

function removeClass(id)
{
	if (confirm('Remove class?'))
	{
		document.location.href='classes.php?command=remove&class_id='+id;
	}
}