XMLHttpRequest

function sendMail() { 
	document.getElementById('resp_div_sendMail').innerHTML = "";
	sendMailLang = 1;
	if (document.getElementById('sendMailLang').checked == true) {
		sendMailLang = 2;
	}
	var mail = document.getElementById('mail').value;
	var post_i223 = "id=" + 
               "&id_ext1=" +
               "&username=" +
               "&type=1" +
               "&lang=" + sendMailLang +
               "&mail=" + mail;
	var xmlObj = false;
	try {
		xmlObj = new XMLHttpRequest();
	} catch (trymicrosoft) {	
		try {
			xmlObj = new ActiveXObject("Msxml2.XMLHTTP");
		} catch (othermicrosoft) {
			try {
				xmlObj = new ActiveXObject("Microsoft.XMLHTTP");
			} catch (failed) {
				xmlObj = false;
			}  
		}
	}
	//alert($ue_expo);
	xmlObj.open ('POST', 'pdfticket/tpdf.php?ue_expo=', true); 
	//xmlObj.open ('POST', 'pdfticket/tpdf.php', true); 
	xmlObj.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
	xmlObj.onreadystatechange = function(){ 
		if(xmlObj.readyState == 4){ 
			document.getElementById('resp_div_sendMail').innerHTML = xmlObj.responseText;
		} 
	} 
	xmlObj.send (post_i223); 
}