// Popup centré
function centerPopup(page,largeur,hauteur,options) {
	var top=(screen.height-hauteur)/2;
	var left=(screen.width-largeur)/2;
	window.open(page,"","top="+top+",left="+left+",width="+largeur+",height="+hauteur+","+options);
}

function getCookieVal(offset) {
        var endstr=document.cookie.indexOf (";", offset);
        if (endstr==-1)
                endstr=document.cookie.length;
        return unescape(document.cookie.substring(offset, endstr));
}

function GetCookie (name) {
        var arg=name+"=";
        var alen=arg.length;
        var clen=document.cookie.length;
        var i=0;
        while (i<clen) {
                var j=i+alen;
                if (document.cookie.substring(i, j)==arg)
                        return getCookieVal (j);
                i=document.cookie.indexOf(" ",i)+1;
                        if (i==0) break;}
        return null;
}

function getElementsByClassName(oElm, strTagName, oClassNames){
	var arrElements = (strTagName == "*" && oElm.all)? oElm.all : oElm.getElementsByTagName(strTagName);
	var arrReturnElements = new Array();
	var arrRegExpClassNames = new Array();
	if(typeof oClassNames == "object"){
		for(var i=0; i<oClassNames.length; i++){
			arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames[i].replace(/\-/g, "\\-") + "(\\s|$)"));
		}
	}
	else{
		arrRegExpClassNames.push(new RegExp("(^|\\s)" + oClassNames.replace(/\-/g, "\\-") + "(\\s|$)"));
	}
	var oElement;
	var bMatchesAll;
	for(var j=0; j<arrElements.length; j++){
		oElement = arrElements[j];
		bMatchesAll = true;
		for(var k=0; k<arrRegExpClassNames.length; k++){
			if(!arrRegExpClassNames[k].test(oElement.className)){
				bMatchesAll = false;
				break;
			}
		}
		if(bMatchesAll){
			arrReturnElements.push(oElement);
		}
	}
	return (arrReturnElements)
}

function display_archives(){
	arrElements = getElementsByClassName(document.getElementById("archives"),"li","archives_more");
	for(var j=0; j<arrElements.length; j++){
		elt = arrElements[j];
		elt.style.display='list-item';
		document.getElementById("archives_more_link").style.display='none';
	}
}