var lay_visible = "";

function displaySubMenu(menu)
{
	var mainLayer;

	lay_visible = menu;

	mainLayer = getLayer('lay_' + menu);
	img = getImage('img_' + menu);
	mainX = getImagePageLeft(img) + parseInt(img.border, 10);
	mainY = getImagePageTop(img) + parseInt(img.border, 10) + 14;
	moveLayerTo(mainLayer, mainX, mainY);
	showLayer(mainLayer);
}

function hideAll()
{
	if (document.all)
	{
		lay_presentation.style.visibility = "hidden";
		lay_entreprises.style.visibility = "hidden";
	}
}

function handleEvent(e)
{
	var mainLayer, img;
	if (lay_visible != "")
	{
		mainLayer = getLayer('lay_' + lay_visible);
		img = getImage('img_' + lay_visible);
	}
	var x,y;
	
	if (document.all)
	{
		switch (event.type)
		{
			case "mousemove":
				x = event.x + document.body.scrollLeft;
				y = event.y + document.body.scrollTop;
				break;
		}
	}
	if (document.layers)
	{
		var x = e.pageX;
		var y = e.pageY;
	}
	if (lay_visible != "" && (x < getLeft(mainLayer) || x > getRight(mainLayer) || y < getTop(mainLayer) || y > getBottom(mainLayer)) &&
		(x < getImagePageLeft(img) || x > getImagePageLeft(img)+img.width || y < getImagePageTop(img) || y > getImagePageTop(img)+img.height))
		hideAll();		

		
}