function initExpandMenu(s,f)
{
	var sobj = null;
	if (document.all) {
		sobj = document.all(s);
	} else {
		sobj = document.getElementById(s);
	}
	if (sobj)
	{
		if (f) {
			sobj.style.display = 'block';
		} else {
			sobj.style.display = 'none';
		}
	}
}
function changeExpandMenu(s)
{
	var sobj = null;
	if (document.all) {
		sobj = document.all(s);
	} else {
		sobj = document.getElementById(s);
	}
	if (sobj)
	{
		if (sobj.style.display == 'block') {
			sobj.style.display = 'none';
		} else {
			sobj.style.display = 'block';
		}
	}
}