Tuesday, May 6, 2008
Ajax login
function MakeCursorHourglass()
{
document.body.style.cursor = "wait";
}
function MakeCursorNormal()
{
document.body.style.cursor = "default";
}
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 login()
{
xmlHttp = GetXmlHttpObject();
var field_info = new Array();
if (xmlHttp == null)
{
alert ("Your browser does not support AJAX!");
return;
}
url = "/btree-bin/login.py"
field_info[0] = document.getElementById("user").value;
field_info[1] = document.getElementById("passwd").value;
if (checklogin_validation(field_info[0],field_info[1])==true)
{
xmlHttp.open("POST",url,true);
xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
xmlHttp.send("user" + field_info[0] + "&passwd=" + field_info[1]);
MakeCursorHourglass()
xmlHttp.onreadystatechange = function()
{
if (xmlHttp.readyState == 4)
{
userid = xmlHttp.responseText;
MakeCursorNormal()
if (userid == 0)
{
var div = document.getElementById("div");
div.innerHTML = 'Invalid Email Address or Password';
}
else if (userid == -1)
{
var div = document.getElementById("div");
div.innerHTML = 'User already Logged In';
}
else if (userid == -2)
{
var div = document.getElementById("div");
div.innerHTML = 'DATABASE ERROR';
}
else
{
//var myHiddenfield = document.getElementById('v');
//myHiddenfield.value = userid;
// alert(myHiddenfield.value)
window.location.replace("/lic-bin/updateService.py?v=" + userid + "");
//url = "../../../cgi-bin/user/updateService.py"
//xmlHttp.open("POST",url,true);
//xmlHttp.setRequestHeader("Content-Type","application/x-www-form-urlencoded");
//xmlHttp.send("userid=" + userid);
}
}
}
}
}
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