Onunload function

Question

Hi,
I am having an issue with onunload function.
Currently I have a page contains textfield, checkbox and select box. If there is a field value changes, when user leaves the page, there should be a warning message like "Do you want to save the change?" with ok and cancel button.
On the page, In each field, I added
onchange="setflag();"
In HTML body, I added
onunload = "validatepageexit();"
In HTML head, there is a function
function setflag()
$x('P0_PAGE_MODIFIED').value = 'Y';
function validatepageexit()
if (document.wwv_flow.P0_PAGE_MODIFIED.value == 'Y')
if (confirm('Do you want to save the changes?'))
doSubmit();
return true;
else
return false;
else
return false;
Now if I click other tabs without saving the changes, the popup message appears and it works properly. However, when I try to navigate other pages by changing URL, the message doesn't show up.
By the way, it seems working only on select box.
Any idea?

Answer 1

Hi,
The javascript onchange="setflag();" should work on all your items... make sure you put the code at the right place.
The onunload event should only be triggered when the page do a "unload" action(goto another page), changing the url in the browser can't trigger the page unload action because it's not the same context...
think about page action/event and browser action/event... it's not the same thing!
if you do refresh on the browser, the onunload event won't be triggered
Louis-Guillaume
Homepage : http://www.insum.ca
Blog : http://insum-apex.blogspot.com