function URLEncode(plaintext)
{
	// The Javascript escape and unescape functions do not correspond
	// with what browsers actually do...
	var SAFECHARS = "0123456789"+"ABCDEFGHIJKLMNOPQRSTUVWXYZ"+"abcdefghijklmnopqrstuvwxyz"+"-_.!~*'()";
	var HEX = "0123456789ABCDEF";
	var encoded = "";
	for (var i = 0; i < plaintext.length; i++ ) {
		var ch = plaintext.charAt(i);
	    if (ch == " ") {
		    encoded += "+";				// x-www-urlencoded, rather than %20
		} else if (SAFECHARS.indexOf(ch) != -1) {
		    encoded += ch;
		} else {
		    var charCode = ch.charCodeAt(0);
			if (charCode > 255) {
			    alert( "Unicode Character '" 
                        + ch 
                        + "' cannot be encoded using standard URL encoding.\n" +
				          "(URL encoding only supports 8-bit characters.)\n" +
						  "A space (+) will be substituted." );
				encoded += "+";
			} else {
				encoded += "%";
				encoded += HEX.charAt((charCode >> 4) & 0xF);
				encoded += HEX.charAt(charCode & 0xF);
			}
		}
	}
	return encoded;
};

function recaller() {
	tel=document.recallform.recall_tel.value;
	nom=document.recallform.recall_nom.value;
	if (tel=="") {
		alert("Vous n'avez pas renseigné le numéro de téléphone nécessaire à vous recontacter.");
	}
	else {
		alert("Vous allez être recontacté(e) par téléphone au : "+tel+"\r\n");
		var http_request = false;
		if (window.XMLHttpRequest) { // Mozilla, Safari, ...
			http_request = new XMLHttpRequest();
			if (http_request.overrideMimeType) { http_request.overrideMimeType('text/xml'); }
		} else if (window.ActiveXObject) { // IE
			try { http_request = new ActiveXObject("Msxml2.XMLHTTP"); } 
			catch (e) {
			try { http_request = new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {}
			}
		}
		if (!http_request) { alert('Erreur!'); return false; }
		http_request.onreadystatechange = function() { 
				if (http_request.readyState == 4) 
				{
					if (http_request.status == 200) 
					{
						liste=http_request.responseText; 
						//alert(liste);
					}
				}
			}
		urlref=document.location.href;
		varurlref=URLEncode(urlref);
		url="rappel/recall_traitement.php?tel_rappel="+tel+"&nom="+nom+"&urlfrom="+varurlref;
		//alert(url) ;
		http_request.open('GET', url, true);
		http_request.send(null);
	}
}