function appel(page) { 
			/*appel depuis menu haut vers page milieu*/
			document.getElementById("txtfield" ).style.visibility='visible';
	if(page == 'NULL' ){
		document.getElementById('sous_entete').selectedIndex = 0;
	}else{creerRequete();
    		var url1 = 'page/'+page;
      	 requete.open('GET', url1, true);
         requete.onreadystatechange = function(){
			if(requete.readyState == 4 && requete.status == 200){
					actualiserPage("txtfield");
				}
		};
		requete.send(null);
		document.getElementById("menu_bg" ).style.visibility='hidden';
	}
}
function appelpm(page) { 
				/*appel depuis menu bas produits vers page milieu*/
				document.getElementById("txtfield" ).style.visibility='visible';
	if(page == 'NULL' ){
		document.getElementById('sous_entete').selectedIndex = 0;
	}else{creerRequete();
    		var url1 = "page/"+page;
    		requete.open('GET', url1, true);
        requete.onreadystatechange = function(){
    		if(requete.readyState == 4 && requete.status == 200){
					actualiserPage("txtfield");
				}
		};
		requete.send(null);
	}
}
function appelm(page) { 
				/*appel depuis menu haut vers menu bas*/
					document.getElementById("menu_bg" ).style.visibility='visible';
	if(page == 'NULL' ){
		document.getElementById('sous_entete').selectedIndex = 0;
	}else{creerRequete();
      		var url1 = 'page/'+page;
      		requete.open('GET', url1, true);
          requete.onreadystatechange = function(){
      		if(requete.readyState == 4 && requete.status == 200){
					actualiserPage("menu_bg");
			}
		};
		requete.send(null);
document.getElementById("txtfield" ).style.visibility='hidden';
	}
}

function creerRequete(){
    try {requete = new XMLHttpRequest();
    }catch(microsoft){
        
        try{
            requete = new ActiveXObject('Msxml2.XMLHTTP');
        }catch(autremicrosoft){
            
            try {
                requete = new ActiveXObject('Microsoft.XMLHTTP');
            }catch(echec){
               
                requete = null;
            }
        }
    }if(requete == null){
        alert('Votre navigateur ne semble pas supporter les object XMLHttpRequest.');
    }
}

function actualiserPage(page){ 
			
    var listeRep = requete.responseText;
    var blocListe = document.getElementById(page);
    blocListe.innerHTML = listeRep;
}

function Choixsujet(s){		
	 
	if(s == 'cat'){
		document.getElementById('list_c').selectedIndex = 0;
	}else {	creerRequete();
        	var url1 = 'Forums.php?suj='+s;
        	requete.open('GET', url1, true);
           requete.onreadystatechange = function(){
        	if(requete.readyState == 4 && requete.status == 200){
				        actualiserPage("forum_aff");
					
			}
		};
		requete.send(null);
	}
};
function Choixsujets(s){		
	 	
	if(s == 'cat'){
		document.getElementById('list_c').selectedIndex = 0;
	}else {creerRequete();
        	var url1 = 'ajout_sujet_forum.php?cat='+s;
        	requete.open('GET', url1, true);
          requete.onreadystatechange = function(){
        	if(requete.readyState == 4 && requete.status == 200){
        				actualiserPage("corps");
			}
		};
		requete.send(null);
	}
};
function Choixsujeta(s){		
	 
	if(s == 'cat'){
		document.getElementById('list_c').selectedIndex = 0;
	}else {	creerRequete();
        	var url1 = 'admin_forum.php?suj='+s;
        	requete.open('GET', url1, true);
           requete.onreadystatechange = function(){
        		if(requete.readyState == 4 && requete.status == 200){
				    actualiserPage("admin_aff");
			}
		};
		requete.send(null);
	}
};
function Choixmat(s){		
	 
	if(s == 'cat'){
		document.getElementById('list_m').selectedIndex = 0;
	}else {	creerRequete();
        	var url1 = 'admin_aj_ser.php?suj='+s;
        	requete.open('GET', url1, true);
           requete.onreadystatechange = function(){
        		if(requete.readyState == 4 && requete.status == 200){
				    actualiserPage("admin_aff");
			}
		};
		requete.send(null);
	}
};
function Choixser(s){		
	 
	if(s == 'cat'){
		document.getElementById('list_s').selectedIndex = 0;
	}else {	creerRequete();
        	var url1 = 'admin_aj_prod.php?suj='+s;
        	requete.open('GET', url1, true);
           requete.onreadystatechange = function(){
        		if(requete.readyState == 4 && requete.status == 200){
				    actualiserPage("admin_aff");
			}
		};
		requete.send(null);
	}
};
function Choixprix(s){		
	 
	if(s == 'cat'){
		document.getElementById('list_p').selectedIndex = 0;
	}else {	creerRequete();
        	var url1 = 'admin_aj_prod.php?suj='+s;
        	requete.open('GET', url1, true);
           requete.onreadystatechange = function(){
        		if(requete.readyState == 4 && requete.status == 200){
				    actualiserPage("admin_aff");
			}
		};
		requete.send(null);
	}
};