function ShowSubMenuItems(items)
{
	if(document.getElementById(items).style.visibility != 'visible')
	document.getElementById(items).style.visibility = 'visible';
}
function HideSubMenuItems(items)
{
	if(document.getElementById(items).style.visibility != 'hidden')
	document.getElementById(items).style.visibility = 'hidden';
}
function ShowMenuItems(items) {
	var objDivTag = document.getElementById(items);
	var objIFrame = document.getElementById('ifShadow');

	objDivTag.style.display = "block";
	objIFrame.style.width = objDivTag.offsetWidth;
	objIFrame.style.height = objDivTag.offsetHeight;
	objIFrame.style.top = objDivTag.offsetTop;
	objIFrame.style.left = objDivTag.offsetLeft;
	objIFrame.style.zIndex = objDivTag.style.zIndex - 1;
	objIFrame.style.display = "block";
}

function HideMenuItems(items) {
	var objDivTag = document.getElementById(items);
	var objIFrame = document.getElementById('ifShadow');
	objDivTag.style.display = "none";
	objIFrame.style.display = "none";
	
	objIFrame.style.height = 0;
	objIFrame.style.width = 0;
}