function getXhr(){
        var xhr = null; 
				if(window.XMLHttpRequest)
				   xhr = new XMLHttpRequest(); 
				else if(window.ActiveXObject){
				   try {
			                xhr = new ActiveXObject("Msxml2.XMLHTTP");
			            } catch (e) {
			                xhr = new ActiveXObject("Microsoft.XMLHTTP");
			            }
				}
				else {
				   alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest..."); 
				   xhr = false; 
				} 
        return xhr;
}
/***************************************************************************************************/
function passe_over(no){
	document.getElementById('noteit' + no).style.display = "block";
	document.getElementById('noteit' + no).style.visibility = "visible";
	document.getElementById('sousit').style.display = "none";
	document.getElementById('sousit').style.visibility = "hidden";
}
function passe_out(no){
	document.getElementById('noteit' + no).style.display = "none";
	document.getElementById('noteit' + no).style.visibility = "hidden";
	document.getElementById('sousit').style.display = "block";
	document.getElementById('sousit').style.visibility = "visible";
}
/***************************************************************************************************/
function arrub(num){
				var xhr = getXhr();
				xhr.onreadystatechange = function(){
					if(xhr.readyState == 4 && xhr.status == 200){
						leretour = xhr.responseText;
						tab=leretour.split("§");
    						 	 document.getElementById('zonefolio').innerHTML = tab[0];
    						 	 document.getElementById('refere').innerHTML = tab[1];
					}
				}
				xhr.open("POST","affiche-reference.html",true);
				xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded; charset=iso-8859-1');
				xhr.send("op=ar&num="+num);
}
function avrub(num){
				var xhr = getXhr();
				xhr.onreadystatechange = function(){
					if(xhr.readyState == 4 && xhr.status == 200){
						leretour = xhr.responseText;
						tab=leretour.split("§");
    						 	 document.getElementById('zonefolio').innerHTML = tab[0];
    						 	 document.getElementById('refere').innerHTML = tab[1];
					}
				}
				xhr.open("POST","affiche-reference.html",true);
				xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded; charset=iso-8859-1');
				xhr.send("op=av&num="+num);
}
function arfolio(num,no){
				var xhr = getXhr();
				xhr.onreadystatechange = function(){
					if(xhr.readyState == 4 && xhr.status == 200){
						leretour = xhr.responseText;
						tab=leretour.split("§");
    						 	 document.getElementById('zonefolio').innerHTML = tab[0];
    						 	 document.getElementById('refere').innerHTML = tab[1];
					}
				}
				xhr.open("POST","affiche-reference.html",true);
				xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded; charset=iso-8859-1');
				xhr.send("op=arf&num="+num+"&no="+no);
}
function avfolio(num,no){
				var xhr = getXhr();
				xhr.onreadystatechange = function(){
					if(xhr.readyState == 4 && xhr.status == 200){
						leretour = xhr.responseText;
						tab=leretour.split("§");
    						 	 document.getElementById('zonefolio').innerHTML = tab[0];
    						 	 document.getElementById('refere').innerHTML = tab[1];
					}
				}
				xhr.open("POST","affiche-reference.html",true);
				xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded; charset=iso-8859-1');
				xhr.send("op=avf&num="+num+"&no="+no);
}
/****************************************************************************************************************/
function section(no){
				var xhr = getXhr();
				xhr.onreadystatechange = function(){
					if(xhr.readyState == 4 && xhr.status == 200){
						leretour = xhr.responseText;
						if (leretour.substring(0,1)!="*")
						{
						 	 document.getElementById('centre').style.backgroundImage = leretour;
							 efface();
						 	 document.getElementById('gauche' + no).style.display = "block";
						 	 document.getElementById('droite' + no).style.display = "block";
						 	 document.getElementById('gauche' + no).style.visibility = "visible";
						 	 document.getElementById('droite' + no).style.visibility = "visible";
						}

					}
				}
				xhr.open("POST","lasection.html",true);
				xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded; charset=iso-8859-1');
				xhr.send("no="+no);
}
function efface(){
	 	 document.getElementById('droite0').style.display = "none";
	 	 document.getElementById('droite0').style.visibility = "hidden";
	 	 document.getElementById('droite1').style.display = "none";
	 	 document.getElementById('droite1').style.visibility = "hidden";
	 	 document.getElementById('droite2').style.display = "none";
	 	 document.getElementById('droite2').style.visibility = "hidden";
	 	 document.getElementById('droite3').style.display = "none";
	 	 document.getElementById('droite3').style.visibility = "hidden";
	 	 document.getElementById('droite4').style.display = "none";
	 	 document.getElementById('droite4').style.visibility = "hidden";
	 	 document.getElementById('droite5').style.display = "none";
	 	 document.getElementById('droite5').style.visibility = "hidden";
	 	 document.getElementById('droite6').style.display = "none";
	 	 document.getElementById('droite6').style.visibility = "hidden";
	 	 document.getElementById('gauche0').style.display = "none";
	 	 document.getElementById('gauche0').style.visibility = "hidden";
	 	 document.getElementById('gauche1').style.display = "none";
	 	 document.getElementById('gauche1').style.visibility = "hidden";
	 	 document.getElementById('gauche2').style.display = "none";
	 	 document.getElementById('gauche2').style.visibility = "hidden";
	 	 document.getElementById('gauche3').style.display = "none";
	 	 document.getElementById('gauche3').style.visibility = "hidden";
	 	 document.getElementById('gauche4').style.display = "none";
	 	 document.getElementById('gauche4').style.visibility = "hidden";
	 	 document.getElementById('gauche5').style.display = "none";
	 	 document.getElementById('gauche5').style.visibility = "hidden";
	 	 document.getElementById('gauche6').style.display = "none";
	 	 document.getElementById('gauche6').style.visibility = "hidden";
}

function fixed_top(select,offS){
		return Number(offS+document.documentElement.scrollTop+document.body.scrollTop)+'px';
	}
	function fixed_left(select,offS){
		return Number(offS+document.documentElement.scrollLeft+document.body.scrollLeft)+'px';
	}
	function fixed_bottom(select,offS){
		return Number(-offS+document.documentElement.clientHeight-select.offsetHeight+document.documentElement.scrollTop+document.body.scrollTop)+'px';
	}
	function fixed_right(select,offS){
		return Number(-offS+document.documentElement.clientWidth-select.offsetWidth+document.documentElement.scrollLeft+document.body.scrollLeft)+'px';
	}
	
/***************************************************************************/
function affi_text(ind,no,nb){
			ferme_tout(ind,nb);
   		document.getElementById('soutex' + ind + no).style.display = 'block';
   		document.getElementById('soutex' + ind + no).style.visibility = 'visible';

}

function ferme_tout(ind,nb)
{
 		for (i=1;i<=nb;i++)
		{
      document.getElementById('soutex' + ind + i).style.display = 'none';
      document.getElementById('soutex' + ind + i).style.visibility = 'hidden';
		}
}