function sendemail()
{
xmlHttp=GetXmlHttpObject();
if (xmlHttp==null)
  {
  alert ("Your browser does not support AJAX!");
  return;
  }
var name = document.getElementById('name').value;
var email = document.getElementById('email').value;
var comments = document.getElementById('comments').value;
var url='sendemail.php';
url=url+"?name="+name+"&email="+email+"&comments="+comments;
xmlHttp.onreadystatechange=stateChanged;
xmlHttp.open("GET",url,true);
xmlHttp.send(null);
}

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;
}

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