// FONCTIONNALITES ROLL-OVER
/*
function newImage(arg) {
	if (document.images) {
		rslt = new Image();
		rslt.src = arg;
		return rslt;
	}
}

function changeImagesArray(array) {
	if (preloadFlag == true) {
		var d = document; var img;
		for (var i=0; i<array.length; i+=2) {
			img = null; var n = array[i];
			if (d.images) {img = d.images[n];}
			if (!img && d.getElementById) {img = d.getElementById(n);}
			if (img) {img.src = array[i+1];}
		}
	}
}


function changeImages() {
	changeImagesArray(changeImages.arguments);
}

// PRECHARGEMENT
var preloadFlag = false;
function preloadImages() {
	if (document.images) {
		pre_BT_societe_over = newImage('img/BT_societe-over.gif');
		pre_BT_notremetier_over = newImage('img/BT_notremetier-over.gif');
		pre_BT_nosmethodes_over = newImage('img/BT_nosmethodes-over.gif');
		pre_BT_missions_over = newImage('img/BT_missions-over.gif');
		pre_BT_nouscontacter_over = newImage('img/BT_nouscontacter-over.gif');
		preloadFlag = true;
	}
}
*/


// MASQUER DES DIV
function fermeDIV(thingId)
{
var targetElement;
targetElement = document.getElementById(thingId) ;
if (targetElement.style.display == "")
{
targetElement.style.display = "none" ;
} 
}

// AFFICHER DES DIV

function ouvreDIV(thingId)
{
var targetElement;
targetElement = document.getElementById(thingId) ;
if (targetElement.style.display == "none")
{
targetElement.style.display = "" ;
} 
}



// MENU DE NAVIGATION

var alsa =

{

	display: function()

	{

		if( !document.getElementById || !document.getElementsByTagName ) return false;

		var oDl = document.getElementById('menu').getElementsByTagName('dl'),

			oList = document.getElementById('menu').getElementsByTagName('dd'),

			iI = oDl.length - 1,

			iJ = oList.length - 1;

		for( iJ; iJ>=0; iJ-- )

		{

			oList[iJ].style.display = 'none';

		}

		for( iI; iI>=0; iI-- )

		{

			if( oDl[iI].getElementsByTagName('dd')[0] )

			{

				oDl[iI].onmouseover = function()

				{

					this.getElementsByTagName('dd')[0].style.display = 'block';

				}

				oDl[iI].onmouseout = function()

				{

					this.getElementsByTagName('dd')[0].style.display = 'none';

				}

			}

		}

		return true;

	}

};

var addLoadEvent = function(func)

{

	var oldonload = window.onload;

	if( typeof window.onload != 'function' )

	{

		window.onload = func;

	}

	else

	{

		window.onload = function()

		{

			oldonload();

			func();

		}

	}

};

addLoadEvent(alsa.display);