function newAjax(fichier,param){
        var httpRequest = false;

        if (window.XMLHttpRequest) { // Mozilla, Safari,...
            httpRequest = new XMLHttpRequest();
            /*if (httpRequest.overrideMimeType) {
                httpRequest.overrideMimeType('text/xml');
            }*/
        }
        else if (window.ActiveXObject) { // IE
            try {
                httpRequest = new ActiveXObject("Msxml2.XMLHTTP");
            }
            catch (e) {
                try {
                    httpRequest = new ActiveXObject("Microsoft.XMLHTTP");
                }
                catch (e) {}
            }
        }

        if (!httpRequest) {
            alert('Abandon :( Impossible de créer une instance XMLHTTP');
            return false;
        }
		
		switch(fichier){
			case "includes/admz/delPhoto.php":
				httpRequest.onreadystatechange = function() { parseAjaxDel(httpRequest); };
				break;
			case "includes/admz/delPhotoCode.php":
				httpRequest.onreadystatechange = function() { parseAjaxDel(httpRequest); };
				break;
			case "includes/admz/delPhotoDossier.php":
				httpRequest.onreadystatechange = function() { parseAjaxDel(httpRequest); };
				break;
			case "includes/modules/getMoza.php":
				httpRequest.onreadystatechange = function() { parseAjaxMoza(httpRequest); };
				break;
			case "includes/modules/getMozaClient.php":
				httpRequest.onreadystatechange = function() { parseAjaxMoza(httpRequest); };
				break;
			case "includes/modules/getMozaClientDossier.php":
				httpRequest.onreadystatechange = function() { parseAjaxMoza(httpRequest); };
				break;
				
		}
		
		param=param.replace('\n\r','<br/>');
		param=param.replace('\r\n','<br/>');
		param=param.replace('\n','<br/>');
		param=param.replace('\r','<br/>');

        httpRequest.open('POST', fichier, true);
		httpRequest.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
        httpRequest.send(html_entity_decode(param));
}