hie all...

if (xmlHttp.readyState==4) {
                    var    ResponseData=xmlHttp.responseText;  
                        if (xmlHttp.responseText != '') { 
                         document.getElementById('error').style.display="block";

                         var emsg = "You are not a Registered User";
                         alert(typeof emsg);
                         alert(typeof ResponseData);
                          alert(emsg);
                         alert(ResponseData);
                         
                         if (ResponseData == emsg) {
                            
                            
                            location.href="example.php";                 
                         
                         }
                         else
                         {
                          location.href=xmlHttp.responseText;
                         }

Here in the above code.....
emsg and ResponseData are same type(strings) and same valued strings...

but "if" condition is not working there....plss help....

ok..

my problem got solved frnss....thanx for viewing..

just i changed the xmlHttp result.....

before it was "you are not registered user".....now i changed it to '1'

and i changed the if condition ...

now itszz working.....