var pa = 1;
function setpage(p,nb)
{
	var contenu= document.getElementById("contenu");
	var divs=contenu.getElementsByTagName("div");
	var paged=document.getElementById("nb_pages");
	pp = pa + p;
	if(pp <= nb && pp >= 1) {
		for(var i=0 ; i<divs.length ; i++) {
			if(divs[i].id.search(/^page/)>=0) {
				if(divs[i].id == "page"+pp) {
					divs[i].style.display = "block";
					pa = pp;
					paged.innerText = pp+" / "+nb;
				} else {
					divs[i].style.display = "none";
				}			
			}
		}
	}
}