var referenceTimer = "";
var imageBackgroundTimer = "";

function showReference() { 
	window.clearTimeout(referenceTimer);
	var elem = document.getElementById ("referencesousmenu");
	if (is_mac && is_ie4up) {
		passe = true
	} else {
		var divTag = document.getElementById("reference");
		var AnchorPos = getAnchorPosition("reference")
		elem.style.top=AnchorPos.y+3;
		elem.style.zIndex = 5;
	}

	elem.style.display = "block";
	etatPresentation = "show"

	//Change l'etat du bouton Presentation et fonctionnement
	fsButton('reference',-40);
}

function hideReference() { 
	var elem = document.getElementById ("referencesousmenu");
	if (is_mac && is_ie4up) {
		passe = true
	} else {
		var divTag = document.getElementById("reference");
		var AnchorPos = getAnchorPosition("reference")
		elem.style.top=AnchorPos.y+3;
		elem.style.zIndex = 5;
	}

    elem.style.display = "none";
	etatPresentation = "hide"
	
	//Change l'etat du bouton Presentation et fonctionnement
	fsButton('reference',0);
}

function showHideTimerReference() {
	referenceTimer = window.setTimeout('hideReference();', 500);
}