function mod_skin(i) {
	switch(i) {
		case 1 : cl_ref = "#69ACDF"; src = "offre_une1.jpg" ; break;  
		case 2 : cl_ref = "#384875"; src = "offre_une2.jpg" ;break;  
		case 3 : cl_ref = "#3A1C64"; src = "offre_une3.jpg" ;break;  
		case 4 : cl_ref = "#a41036"; src = "offre_une4.jpg" ;break;  
		case 5 : cl_ref = "#dc3028"; src = "offre_une5.jpg" ;break;  
		case 6 : cl_ref = "#e4843b"; src = "offre_une6.jpg" ;break;  
		case 7 : cl_ref = "#99b921"; src = "offre_une7.jpg" ;break;  
		case 8 : cl_ref = "#5d9f2b"; src = "offre_une8.jpg" ;break;  
		}
	document.getElementById("col").style.backgroundColor = cl_ref;
	document.images["offres"].src = "images/" + src;

	var xhr=null;
    if (window.XMLHttpRequest) { 
        xhr = new XMLHttpRequest();
    }
    else if (window.ActiveXObject) 
    {
        xhr = new ActiveXObject("Microsoft.XMLHTTP");
    }
    //on définit l'appel de la fonction au retour serveur
    xhr.onreadystatechange = function() { tester_skin(xhr); };
    xhr.open("GET", "params_skin.php?cl=" + cl_ref + "&img=" + src , true);
    xhr.send(null);
}



//////////////////////////////////////////
function tester_skin(xhr) {
	if (xhr.readyState==4) alert_ajax_skin(xhr);
	}

function alert_ajax_skin(xhr) {
}

function mod_skin2(i) {
	switch(i) {
		case 1 : cl_ref = "#69ACDF"; src = "offre_une1.jpg" ; break;  
		case 2 : cl_ref = "#384875"; src = "offre_une2.jpg" ;break;  
		case 3 : cl_ref = "#3A1C64"; src = "offre_une3.jpg" ;break;  
		case 4 : cl_ref = "#a41036"; src = "offre_une4.jpg" ;break;  
		case 5 : cl_ref = "#dc3028"; src = "offre_une5.jpg" ;break;  
		case 6 : cl_ref = "#e4843b"; src = "offre_une6.jpg" ;break;  
		case 7 : cl_ref = "#99b921"; src = "offre_une7.jpg" ;break;  
		case 8 : cl_ref = "#5d9f2b"; src = "offre_une8.jpg" ;break;  
		}
	document.getElementById("col").style.backgroundColor = cl_ref;

	var xhr=null;
    if (window.XMLHttpRequest) { 
        xhr = new XMLHttpRequest();
    }
    else if (window.ActiveXObject) 
    {
        xhr = new ActiveXObject("Microsoft.XMLHTTP");
    }
    //on définit l'appel de la fonction au retour serveur
    xhr.onreadystatechange = function() { tester_skin(xhr); };
    xhr.open("GET", "params_skin.php?cl=" + cl_ref + "&img=" + src , true);
    xhr.send(null);
}

function mod_skin3(i) {
	switch(i) {
		case 1 : cl_ref = "#69ACDF"; src = "offre_une1.jpg" ; break;  
		case 2 : cl_ref = "#384875"; src = "offre_une2.jpg" ;break;  
		case 3 : cl_ref = "#3A1C64"; src = "offre_une3.jpg" ;break;  
		case 4 : cl_ref = "#a41036"; src = "offre_une4.jpg" ;break;  
		case 5 : cl_ref = "#dc3028"; src = "offre_une5.jpg" ;break;  
		case 6 : cl_ref = "#e4843b"; src = "offre_une6.jpg" ;break;  
		case 7 : cl_ref = "#99b921"; src = "offre_une7.jpg" ;break;  
		case 8 : cl_ref = "#5d9f2b"; src = "offre_une8.jpg" ;break;  
		}
	document.getElementById("col").style.backgroundColor = cl_ref;
	document.getElementById("tab_offres").style.backgroundColor = cl_ref;
	document.getElementById("descrip_offre").style.backgroundColor = cl_ref;

	var xhr=null;
    if (window.XMLHttpRequest) { 
        xhr = new XMLHttpRequest();
    }
    else if (window.ActiveXObject) 
    {
        xhr = new ActiveXObject("Microsoft.XMLHTTP");
    }
    //on définit l'appel de la fonction au retour serveur
    xhr.onreadystatechange = function() { tester_skin(xhr); };
    xhr.open("GET", "params_skin.php?cl=" + cl_ref + "&img=" + src , true);
    xhr.send(null);
}