modtimetable_blocks = new Array();
modtimetable_transtypes = new Array();
modtimetable_last_inserted = new Array();

function modtimetable_Transtype (id, description)
{
	this.id = id;
	this.description = description;
}

function modtimetable_clear_select (select)
{
	while (select.lastChild.value != -1)
		select.removeChild(select.lastChild);
	select.disabled = true;
}

function modtimetable_clear_div (div)
{
	while (div.firstChild)
		div.removeChild(div.firstChild);
}