onbeforeunload Javascript
There are some cases where you might want to instruct the user before he/She is navigating to the next page. That might be a meaningful message like “Are you sure you want to navigate away from the current page?”
Probably end user pressed the X button by mistake and he/she might loose his/her current state
There is onbeforeunload event for the JavaScript that fires when you are navigating away from the current page.
Here is the Code for that.
script type=”text/javascript”
function close()
{
event.returnValue = “This will navigate to next page.”;
}
script
body onbeforeunload=”close()”
a href=”microsoft.com” Click Here to navigate to Microsoft a
body
html
Note:
The default statement that appears in the dialog box, “Are you sure you want to navigate away from this page? … Press OK to continue, or Cancel to stay on the current page.”, cannot be removed or altered.
