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advice for a timer function

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Aug 22.2007

hi there

I’m developing a quiz in php that spans across 20 pages but i need to have some kind of timer to limit the time taken by the user – if they don’t complete the quiz within, say, ten minutes then the final page of the quiz is called – so i thought that this would be good to do in javascript but i’m not too hot on js …

i think i can write the code for a timer that displays a countdown of remaining minutes and seconds – but i haven’t got a clue how to make it continue over each page refresh without using a separate page in a pop-up window.

what are my options here ?

thanks

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5 Comments(s) ↴

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@FangAug 22.2007 — iframe, cookie or form
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@steamPunkauthorAug 22.2007 — ok thanks for your reply

i can see how the cookie and iframe methods would work but how would i combine the countdown timer with the form method ?

I'm using a form for my quiz so this may be the best (and simplest) option
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@FangAug 22.2007 — A hidden form field would contain the time, which is passed to the next form quiz page.

iframe is probably the simplest.
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@steamPunkauthorAug 22.2007 — unfortunately an iframe isn't possible in this context

I can't just send the start time from one form page to another as i have to take into account load times for flash sound files - even if the user is on a page i can't start the timer in that page until the flash file has loaded

is it possible to dynamically update a hidden form field with the amount of time that has elapsed ?

if it is possible then i could send the cumulative number of seconds as a hidden field value - then when the flash file has finished loading it will trigger a js function in the page that will continue the countdown whilst updating the hidden form field variable

what do you think ?
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@FangAug 22.2007 — Use onunload and onload to update the field and restart the timer.
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