function getXMLHTTPRequest() {
try {
req = new XMLHttpRequest();
} catch(err1) {
  try {
  req = new ActiveXObject("Msxml2.XMLHTTP");
  } catch (err2) {
    try {
    req = new ActiveXObject("Microsoft.XMLHTTP");
    } catch (err3) {
      req = false;
    }
  }
}
return req;
}

var http = getXMLHTTPRequest();

function sendmail() {
  var myurl = 'modules/contents/sendmail.php';
  myRand = parseInt(Math.random()*999999999999999);
 // myRand=1;
  var nam=document.getElementById('nam').value;
  var yourmail=document.getElementById('yourmail').value;
  var friendsmail=document.getElementById('friendsmail').value;
  var link=document.getElementById('link').value;
//  alert(txt);
  var modurl = myurl+"?rand="+myRand+"&nam="+nam+"&yourmail="+yourmail+"&friendsmail="+friendsmail+"&link="+link;
  http.open("GET", modurl, true);
  http.onreadystatechange = useHttpResponse;
  http.send(null);
}

function useHttpResponse() {
   if (http.readyState == 4) {
    if(http.status == 200) {
       document.getElementById('sendtofriend').innerHTML = http.responseText;
    }
  } else {
  document.getElementById('sendtofriend').innerHTML = '<img src="images/anim.gif">';
  }
}