How to refresh a part of a webpage

sbkumar · June 5th, 2008, 08:43 AM

Hello everyone,

I need to check if the user has logged in everytime some action takes place on the page.Eg when a user clicks on the page.This is the javascript function I have.

function bodyClick() {
var value=document.getElementById('Bcheck').value;
alert (value) ;
}

I am calling this function from <body onclick="bodyClick()">

and this is the element 'Bcheck'

<h:inputHidden id="Bcheck" value="#{userBean.loggedIn}"/>

When I use this, the value is fixed once the page loads.So even when a user clicks on the page after session times out,the value is still true.So is there anyway I can include the hidden field in a <div> and refresh only the <div> using javascript?

Thanks in advance

vinod_yadav1919 · June 5th, 2008, 03:17 PM

Hi SBKumar!!
Hope this link will help you http://p2p.wrox.com/topic.asp?TOPIC_ID=69088
Note:- 1>Please verify your session timeout period ,for some server it is modified by Admin,cross check it(modify sessionTimeOutInMin=60) in given code.
2>You will have to modify alert('Finally TimeOut') line in given link,that will set the Flag/Value to false.
3>In body click function you need to check the Flag/Value if it is false,then session is completely timed out..

One more thing "How to refresh a part of a webpage "?? for this you need to use ajax/iframe/frame concepts based on ur requirement.With your above requirement its a client side session tracking..and why do u want to refresh part of the page for this?? So be more on problem/solution specific..

Cheers :)

vinod

sbkumar · June 6th, 2008, 11:25 AM

Hello Vinod

Thanks for the reply.
I am trying to check if the user has logged in so that I can redirect to home page if he is not logged in.I used the alert just to check true/false.I tried looking at frames and AJAX but no where I was able to find the solution to my problem because I cant access the java bean using AJAX.Any help?

sbkumar · June 6th, 2008, 11:28 AM

"and why do u want to refresh part of the page for this?? "

I wanted to refresh that particular part so that I get true/false athe moment the event (clicking) occured.If not it holds the same value which was assigned when the page was loaded.