var xmlHttp

function contactUs() {
	xmlHttp=GetXmlHttpObject();
	if (xmlHttp==null) {
		alert ("Your browser does not support AJAX!");
		return;
	 } 
	
	document.getElementById("msgBox").innerHTML='<img src="images/loader.gif" border="0" alt="">';
	
	var url="sendemail.php";
	url = url + "?name=" + document.getElementById("name").value;
	url = url + "&email=" + document.getElementById("email").value;
	url = url + "&phone=" + document.getElementById("phone").value;
	url = url + "&message=" + document.getElementById("message").value;
	url = url + "&sid=" + Math.random();
	xmlHttp.onreadystatechange = stateChanged;
	xmlHttp.open("GET",url,true);
	xmlHttp.send(null);


}


function stateChanged() { 
	if (xmlHttp.readyState == 4) { 
		res = xmlHttp.responseText;
		if (res == 2) {
			alert('Please, fill all fields');
			document.getElementById("msgBox").innerHTML = "<span style='color:red; font-weight:bold;'>Please, fill all fields</span>";
		} else if (res == 0){
			alert('Your email has been sent');
			document.getElementById("msgBox").innerHTML = "<span style='color:green'>Your email has been sent</span>";
			document.getElementById('contact-form').reset();
		}
	}


}



function GetXmlHttpObject(){
var xmlHttp=null;
try {
  // Firefox, Opera 8.0+, Safari
  xmlHttp=new XMLHttpRequest();
} catch (e) {
  // Internet Explorer
  try {
	  xmlHttp=new ActiveXObject("Msxml2.XMLHTTP");
  }
  
  catch (e)
    {
    xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
  }
return xmlHttp;
}