function writediv(texte)
{
	document.getElementById('imgbox').innerHTML = texte;
}

function nouvelleimg()
{
	var texte = file('ajax.php?select=img_accueil')
	writediv(texte);
}

function file(fichier)
{
if(window.XMLHttpRequest) // FIREFOX
xhr_object = new XMLHttpRequest();
else if(window.ActiveXObject) // IE
xhr_object = new ActiveXObject("Microsoft.XMLHTTP");
else
return(false);
xhr_object.open("GET", fichier, false);
xhr_object.send(null);
if(xhr_object.readyState == 4) return(xhr_object.responseText);
else return(false);
}