function changeTaille(taille)
{
	var currentSize = 12;
	var minSize = 12;
	var maxSize = 20;
	currentSize += taille;
	currentSize = (currentSize<minSize) ? minSize : ((currentSize>maxSize) ? maxSize : currentSize);

	if (document.getElementById('chapeau'))
		document.getElementById('chapeau').style.fontSize = (currentSize/10)+'em';
}


function font_size(zoomBy, texte)
{
	/*
	var numLimiteMin = 12;
	var numLimiteMax = 20;
	numSize = document.getElementById(texte).style.fontSize;
	if (zoomBy == "" || zoomBy == 0)
	{
		numSize = 12;
	}
	else if (numSize == "" || numSize == 0)
	{
		numSize = numLimiteMin + 1;
	}
	else
	{
		numSize = parseFloat(numSize) + zoomBy;
	}
	document.getElementById(texte).style.fontSize = numSize + "px";
	*/

	var numLimiteMin = 12;
	var numLimiteMax = 20;
	var nodeList = document.getElementById('chapeau').getElementsByTagName('div');
	var res = [];
	for (var i = 0, div; div = nodeList[i]; i++)
	{
		if (div.hasChildNodes)
		{
			for (var j = 0, o; o = div.childNodes[j]; j++)
			{
				if(/^(DIV|SPAN|P|UL|OL|DL)$/.test(o.nodeName))
				{
					numSize = o.childNodes[j].style.fontSize;
					if (zoomBy == "" || zoomBy == 0)
					{
						numSize = 12;
					}
					else if (numSize == "" || numSize == 0)
					{
						numSize = numLimiteMin + 1;
					}
					else
					{
						numSize = parseFloat(numSize) + zoomBy;
					}
					o.childNodes[j].style.fontSize = numSize + "px";
				}
			}
		}
	}
}

function confirmSuppr(leForm)
{
	var retVal ;
	retVal = confirm("Confirmez-vous cette opération ?");
	return (retVal);
}

function perso(valeur, leForm, leChamp)
{
	document.forms[leForm].elements[leChamp].value +=valeur +' ';
}