// JavaScript Document

function getXhr(){
var xhr = null; 
	if(window.XMLHttpRequest) // Firefox et autres
		xhr = new XMLHttpRequest(); 
	else if(window.ActiveXObject){ // Internet Explorer 
		try {
			xhr = new ActiveXObject("Msxml2.XMLHTTP");
			} catch (e) {
			xhr = new ActiveXObject("Microsoft.XMLHTTP");
			}
		}
	else { // XMLHttpRequest non supporté par le navigateur 
		alert("Votre navigateur ne supporte pas les objets XMLHTTPRequest..."); 
		xhr = false; 
	} 
return xhr;
}

function getit() {
var xhr = getXhr();
	xhr.onreadystatechange = function(){
		if(xhr.readyState == 4 && xhr.status == 200){
			ss_liste = xhr.responseText;
			document.getElementById('ssliste').innerHTML = ss_liste;
		}
	}
xhr.open("POST","ss_liste.php",true);
xhr.setRequestHeader('Content-Type','application/x-www-form-urlencoded');
sel = document.getElementById('categorie');
id_cat = sel.options[sel.selectedIndex].value;
xhr.send("id_cat="+id_cat);
}

function affichage_offres() {
var xhr2 = getXhr();
xhr2.onreadystatechange = function() {
	if(xhr2.readyState == 4 && xhr2.status == 200) {
		offres_rp = xhr2.responseText;
		document.getElementById('aff').innerHTML = offres_rp;
	}
}

xhr2.open("POST", "aff_offres.php", true);
xhr2.setRequestHeader('Content-Type','application/x-www-form-urlencoded');

para1 = document.getElementById('categorie');
id_para1 = para1.options[para1.selectedIndex].value;

para2 = document.getElementById('ss_cat');
id_para2 = para2.options[para2.selectedIndex].value;

xhr2.send("para1="+escape(id_para1)+"&para2="+escape(id_para2));
		
}// fin de affichage_offres