var IsVisible = 0;
	var TimeoutFlag = 0;
	var TitleClipHeight = 0;

	// Dimensions de la zone d'affichage moins 5%
	xMax = document.all.ECRAN.offsetWidth;
	yMax = document.all.ECRAN.offsetHeight;
	xMax2 = Math.round((100 * xMax) / 105);
	yMax2 = Math.round((100 * yMax) / 105);
	// Bordure de 5%
	xBord = Math.round(xMax - xMax2);
	yBord = Math.round(yMax - yMax2);


	// Position L1
	document.all("L1").style.top = 0;
	document.all("L1").style.left = (xMax / 2) - (document.all.L1.offsetWidth / 2);


	// Position header
	document.all("BACKLINKS").style.top = 95;
	document.all("BACKLINKS").style.left = (xMax / 2) - (document.all.BACKLINKS.offsetWidth / 2);

	// Position L4
	document.all("L4").style.top = 130;
	document.all("L4").style.left = (xMax / 2) - (document.all.L4.offsetWidth / 2);


	//gestion du spot
	window.document.onmousemove=PosMouse;
	var YMouse = yBord  + (document.all.L4.offsetHeight / 2);
	var XMouse = xBord + (document.IMAGE.width / 2) + 40; // on a cherche a place initialement le spot sur le museau du taureau
	document.all.L4.style.width = document.IMAGE.width;
	document.all.L4.style.height = document.all.L4.offsetHeight;
	document.all.C3.style.width = document.SPOT.width;
	document.all.C3.style.height = document.SPOT.height;



	//gestion de la visibilite des composants
	function changeVisibility()
	{
		if (IsVisible == 0)
		{
			TitleClip = "rect(" + 0 + "px " + document.IMAGE.width + "px " + document.all.L4.offsetHeight + "px " + 0 + "px)";
			document.all.L4.style.clip = TitleClip;
			document.all.L4.style.visibility = 'visible';
			document.all.C3.style.visibility = 'hidden';
			document.all.BACKLINKS.style.visibility = 'visible';
			IsVisible = 1;
			TimeoutFlag = 1;
		}
		else
		{
				document.all.L4.style.visibility = 'hidden';
				document.all.C3.style.visibility = 'visible';
				document.all.BACKLINKS.style.visibility = 'hidden';
				IsVisible = 0;
				MoveSpotImage('L4','C3',document.IMAGE,document.SPOT,Math.round((document.all.ECRAN.offsetWidth-document.IMAGE.width)/2),100);
		}
	}
	
	

	function MakeVisible()
	{
		if (TimeoutFlag == 0)
		{
			TitleClip = "rect(" + 0 + "px " + document.IMAGE.width + "px " + document.all.L4.offsetHeight + "px " + 0 + "px)";
			document.all.L4.style.clip = TitleClip;
			document.all.L4.style.visibility = 'visible';
			document.all.C3.style.visibility = 'hidden';
			document.all.BACKLINKS.style.visibility = 'visible';
			IsVisible = 1;
			TimeoutFlag = 1;
		}
	}



	// fonction activant tous les scripts
	function StartAll()
	{
		document.onclick = changeVisibility;
		MoveSpotImage('L4','C3',document.IMAGE,document.SPOT,Math.round((document.all.ECRAN.offsetWidth-document.IMAGE.width)/2),100);
		setTimeout("MakeVisible()",20000);
	}