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This will be difficult to do if you do not have a &quot;menu-less&quot; window. &nbsp;Once I press the &quot;back&quot; button in my browser, you're code will now know it.<br />
You need to create a page that has it's own navigation buttons, but even that does not prevent me from right-clicking and selecting &quot;Bacnk&quot;...unless you disable right-click. &nbsp;Now you've totally altered my browser and I'm not sure I want to be on your site unless this is an Intranet site...
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This will be difficult to do if you do not have a "menu-less" window.  Once I press the "back" button in my browser, you're code will now know it.
You need to create a page that has it's own navigation buttons, but even that does not prevent me from right-clicking and selecting "Bacnk"...unless you disable right-click.  Now you've totally altered my browser and I'm not sure I want to be on your site unless this is an Intranet site...

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i have a requirement, in my web application, web page is having many fields, if the user is trying to navigating from this page to another page with out saving , system has to pop some confirmation alert.<br />
For Example: Changes done, you want to exit with out saving the changes Yes / No<br />
<br />
So how my system will understand whether i did the changes in page or not? Kindly help me <br />
<br />
i am using jsf framework
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i have a requirement, in my web application, web page is having many fields, if the user is trying to navigating from this page to another page with out saving , system has to pop some confirmation alert.
For Example: Changes done, you want to exit with out saving the changes Yes / No

So how my system will understand whether i did the changes in page or not? Kindly help me 

i am using jsf framework

confirmation box is required if the user navigating to another page with out saving the data

JavaScript is a dynamic, object-based language commonly used for client-side scripting in web browsers. Recently, server side JavaScript frameworks have also emerged. JavaScript runs on nearly every operating system and  in almost every mainstream web browser.

JavaScript

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.

Java

JScript is Microsoft's dialect of the ECMAScript standard that is used in Microsoft's Internet Explorer. JScript is implemented as an Active Scripting engine, so it can be "plugged in" to OLE Automation applications that support Active Scripting, such as Internet Explorer, Active Server Pages, and Windows Script Host. It also means such applications can use multiple Active Scripting languages, e.g., JScript, VBScript or PerlScript.