var xmlhttp;

function getName(str) {
	if (str.length==0) {
		document.getElementById("clientName").innerHTML="";
		return;
	}
	xmlhttp=GetXmlHttpObject();
	if (xmlhttp==null) {
		// browser does not support ajax
		return;
	}
	var url="clientcentre/php/clientname.php";
	xmlhttp.onreadystatechange = stateChanged;
	xmlhttp.open("POST",url,true);
	xmlhttp.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
	var params = "id=" + str;
	xmlhttp.send(params);
}

function stateChanged() {
	if (xmlhttp.readyState==4) {
		document.getElementById("clientName").innerHTML=xmlhttp.responseText;
	}
}

function GetXmlHttpObject()  {
	if (window.XMLHttpRequest) {
		// code for IE7+, Firefox, Chrome, Opera, Safari
		return new XMLHttpRequest();
	}
	if (window.ActiveXObject) {
		// code for IE6, IE5
		return new ActiveXObject("Microsoft.XMLHTTP");
	}
	return null;
}