function setpng(img) { if(document.all && (IEver=parseFloat(navigator.appVersion.split("MSIE")[1])) && (IEver>=5.5) && (IEver<7) && document.body.filters && img) {
	imgName=img.src.toUpperCase();
	if(imgName.substring(imgName.length-3,imgName.length)=="PNG") img.outerHTML=
		"<span "+(img.id?"id='"+img.id+"' ":"")+(img.className?"class='"+img.className+"' ":"")+(img.title?"title=\""+img.title+"\" ":"")
		+"style=\"width:"+img.width+"px;height:"+img.height+"px;"+(img.align=="left"?"float:left;":(img.align=="right"?"float:right;":""))
		+(img.parentElement.href?"cursor:hand;":"")+"display:inline-block;"+img.style.cssText+";"
		+"filter:progid:DXImageTransform.Microsoft.AlphaImageLoader(src='"+img.src+"',sizingMethod='scale');\"></span>";
}}

var lettre_precedente = 'A';
function getPosition(e)
{
        var left = 0;
        var top  = 0;
        while (e.offsetParent){
                left += e.offsetLeft;
                top  += e.offsetTop;
                e     = e.offsetParent;
        }
        left += e.offsetLeft;
        top  += e.offsetTop;
        return {x:left, y:top};
}


function deplaceScroll(lettre)
{
	if(document.getElementById(lettre)){
		document.getElementById('button_' + lettre_precedente).style.color  = '#808080';
		document.getElementById('button_' + lettre).style.color  = '#4a4ac1';
		var height = getPosition(document.getElementById(lettre)).y - getPosition(document.getElementById('A')).y;
		document.getElementById('recherche-liste').scrollTop=height;
		lettre_precedente = lettre;
	}
}