function toggle_image(name, path)
{
	document[name].src = '/media/navigation/' + path + '.gif';
}

var curMenu = null;
var mouseX;
var mouseY;

if (!document.all) 
{
    window.captureEvents(Event.MOUSEMOVE);
    window.onmousemove=mouse_move;
}


function drop_menu(oMenu)
{
	var IE = document.all?true:false
	
	if (curMenu != null)
		curMenu.style.display = "none";
		
	oMenu.style.display = "block";
	curMenu = oMenu;
}

function mouse_move(e)
{
	mouseX = e.pageX;
	mouseY = e.pageY;
}

function change_class(oElm, tClass, fClass)
{

	var iX = 0;
	var iY = 0;
	var ibX1, ibX2, ibY1, ibY2;
	var IE = document.all?true:false
	
	if (IE) 
	{
		iX = event.clientX + document.body.scrollLeft
		iY = event.clientY + document.body.scrollTop
	}
	else 
	{
		iX = mouseX;
		iY = mouseY;
	}  
	
	if (oElm != null)
	{
		ibX1 = parseInt(oElm.style.left);
		ibX2 = ibX1 + parseInt(oElm.style.width);
		ibY1 = parseInt(oElm.style.top);
		ibY2 = ibY1 + parseInt(oElm.style.height);
		
		if (((iX < ibX1 + 3 || iX > ibX2 - 3) || (iY < ibY1 + 3  || iY > ibY2 - 5)) || (isNaN(ibX1) || isNaN(ibY1)))
		{
			//window.status = iX + ":" + iY + "-" + ibX1 + "," + ibY1 + ":" + ibX2 + "," + ibY2;
			oElm.className = tClass;
		}
		else
		{
			oElm.className = fClass;
		}
	}
}

function hide_menu(oMenu)
{	

	var iX = 0;
	var iY = 0;
	var ibX1, ibX2, ibY1, ibY2;
	var IE = document.all?true:false
	
	if (IE) 
	{
		iX = event.clientX + document.body.scrollLeft
		iY = event.clientY + document.body.scrollTop
	}
	else 
	{
		iX = mouseX;
		iY = mouseY;
	}  
	
	if (oMenu != null)
	{
		ibX1 = parseInt(oMenu.style.left);
		ibX2 = ibX1 + parseInt(oMenu.style.width);
		ibY1 = parseInt(oMenu.style.top);
		ibY2 = ibY1 + parseInt(oMenu.style.height);

		//alert(iX + ":" + iY);
		//alert(ibX1 + "," + ibY1 + ":" + ibX2 + "," + ibY2);
		if ((iX < ibX1 + 3 || iX > ibX2 - 3) || (iY < ibY1 - 5  || iY > ibY2 - 3))
		{
			oMenu.style.display = "none";
		}
	}	
}

function hide_menu_force(oMenu)
{	

	if (oMenu != null)
	{
		oMenu.style.display = "none";
	}	
}