function display(subMenu, origin)
{
	if (document.layers)
	{
		current = (document.layers[subMenu].display);
		if (current == 'none')
		{
			showSub(subMenu, origin);
		}
		if (current == 'block')
		{
			hideSub(subMenu, origin);
		}
		else
		{
			showSub(subMenu, origin);
		}
	}
	else if (document.all)
	{
		current = (document.all[subMenu].style.display);		
		if (current == 'none')
		{
			showSub(subMenu, origin);
		}
		if (current == 'block')
		{
			hideSub(subMenu, origin);
		}
		else
		{
			showSub(subMenu, origin);
		}
	}
	else if (document.getElementById)
	{
		vista = (document.getElementById(subMenu).style.display);
		if (vista == 'none')
		{
			showSub(subMenu, origin);
		}
		if (vista == 'block')
		{
			hideSub(subMenu, origin);
		}
		else
		{
			showSub(subMenu, origin);
		}
	}
}


function firstButtonOver()
{
	var tempRoll = document.getElementById("leftEdgeImage");
	tempRoll.src = "/navigation/header/images/leftEdgeButtonOver.png";
	
}

function firstButtonOut()
{
	var tempRoll = document.getElementById("leftEdgeImage");
	tempRoll.src = "/navigation/header/images/leftEdgeButton.png";
}

function lastButtonOver()
{
	var tempRoll = document.getElementById("rightEdgeImage");
	tempRoll.src = "/navigation/header/images/rightEdgeButtOver.png";
}

function lastButtonOut()
{
	var tempRoll = document.getElementById("rightEdgeImage");
	tempRoll.src = "/navigation/header/images/rightEdgeButton.png";
}

function showSub(pointer, origin)
{	
	displaySubMenu(pointer);
}

function hideSub(pointer, origin)
{	
	hideSubMenu(pointer);
}