function checkLogin()
{
   // navigator.notification.alert("hiii");

    var username;
    var password;

    var x=new XMLHttpRequest();
    x.onreadystatechange=function()
    {

       // alert("....."+x.responseText);
        if (x.readyState == 4 && x.status == 200)
        {
            // alert(x.readyState+"  --- "+x.status);
            alert("hai checkLogin");
            var item=x.responseText.trim();
            alert("Message :"+item);

            if(item=="1")
            {
                window.location="home.html";
            }
        }
    }

    //alert("open");
x.open("POST", "http://localhost:8087/CarRental/com/selcar/getLogin.jsp?username="+document.getElementById('username').value+"&password="+document.getElementById('loginpaswrd').value, true);
x.send();