function popup(im,view,nb) {
	im.style.opacity='0.2';
	c=document.createElement("img");
	 c.setAttribute("src",view);
	 c.setAttribute("alt","");
	so_clearInnerHTML(document.getElementById("image"));
   document.getElementById("image").appendChild(c);
   document.getElementById("image").style.visibility="visible";
   clearinfo();
   if (nb=="0") {document.getElementById("st0").style.visibility="visible";
     document.getElementById("info0").style.visibility="visible";}
   if (nb=="1") {document.getElementById("st1").style.visibility="visible";
     document.getElementById("info1").style.visibility="visible";}
   if (nb=="2") {document.getElementById("st2").style.visibility="visible";
     document.getElementById("info2").style.visibility="visible";}
 }

function so_clearInnerHTML(obj) {
	while(obj.firstChild) obj.removeChild(obj.firstChild);
 }

function out(im) {
	im.style.opacity='0.5';
 }

function clearinfo() {
	document.getElementById("st0").style.visibility="hidden";
	document.getElementById("st1").style.visibility="hidden";
	document.getElementById("st2").style.visibility="hidden";
	document.getElementById("info0").style.visibility="hidden";
	document.getElementById("info1").style.visibility="hidden";
	document.getElementById("info2").style.visibility="hidden";
	document.getElementById("pageinfo").style.visibility="hidden";
 }