How do I reset a checkbox thats checked value is set by php?

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I have a web form with a bazillion check boxes. If the form is filled out incorrectly, none of the check boxes are reset (as an anti-frustration feature).

Problem is, the reset button doesn't work to uncheck all the boxes. How do I fix this?

document.getElementById("form").reset() doesn't work if the form has been submitted beforehand.

Sample code below:

XML

<body>

<script>
function resetData() {
    document.getElementById("deleteContactFlag").checked=false;
    document.getElementById("userAdministrationFlag").checked=false;
}
</script>

<form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="post" id="form">
    <input type="checkbox" name="deleteContactFlag" id="deleteContactFlag" <?php if (isset($_POST["deleteContactFlag"])) echo 'checked="checked"'; ?>/> Delete Contacts
    <input name="userAdministrationFlag" type="checkbox" id="userAdministrationFlag" <?php if (isset($_POST["userAdministrationFlag"])) echo 'checked="checked"'; ?>/> User Administration

    <input type="submit" name="submit" id="submit" value="Submit">
    <button type="button" onClick="resetData()">Reset</button>
</form>

</body>
[link removed]

Posted 26-Jun-14 1:44am

m2soft solutions

Updated 26-Jun-14 2:38am

CHill60

v2

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CHill60 26-Jun-14 8:29am

As an aside I would get rid of the link to your website in the question - firstly it will probably be regarded as spam and secondly it's not a particularly good advert for your services if you have to post questions here.
Might also be an idea to include the code behind the reset button

m2soft solutions 26-Jun-14 8:50am

i am working for a web designing and development company.... so i upload the questions of developers here.... for solutions...

Wombaticus 26-Jun-14 8:33am

Have you tried a simple Reset button?
<button type="reset" value="Reset">Reset</button>

m2soft solutions 26-Jun-14 8:47am

not yet....
but i will do this now....

thanks for quick reply,,...

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CHill60 · Answer 1 · 2014-06-26T02:37:00

Solution 2

Question has been fully answered on that other site[^]

Posted 26-Jun-14 2:37am

CHill60