Ajax Implementation Login Verification
JS files are as follows:
var xmlHttp;
function Img1_onclick () {
Checkisvalid ();
}
function Checkisvalid ()
{
Creatxmlhttprequest ();
var Username=document.getelementbyid ("Admintext");
var Password=document.getelementbyid ("Adminpasswordtext");
var url= "Checklogin.aspx?username=" +escape (username.value) + "&password=" +escape (Password.value);
Xmlhttp.open ("Get", url,true);
Xmlhttp.onreadystatechange=callback;
Xmlhttp.send (NULL);
}
function Creatxmlhttprequest ()
{
try {
XmlHttp = new ActiveXObject ("Msxml2.xmlhttp");
catch (e) {
try {
XmlHttp = new ActiveXObject ("Microsoft.XMLHTTP");
} catch (E2) {
XmlHttp = false;
}
}
if (!xmlhttp && typeof xmlhttprequest!= ' undefined ') {
XmlHttp = new XMLHttpRequest ();
}
}
function callback ()
{
if (xmlhttp.readystate==4)
{
if (xmlhttp.status==200)
{
var mes=xmlhttp.responsexml.getelementsbytagname ("message") [0].firstchild.data;
var val=xmlhttp.responsexml.getelementsbytagname ("passed") [0].firstchild.data;
Setmessage (Mes,val);
}
}
}