document.getElementById(' ') is null error - Programmers Heaven

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document.getElementById(' ') is null error

bhavin_patelbhavin_patel Posts: 1Member
i got an error on my php code is bellow.

$year = $_GET['year'];
$month = $_GET['month'];
$day = $_GET['day'];


function GetCount(y,m,d){

/* Here is some logic and get output on 'out'. */

out = "some result";


GetCount('<?php echo $year; ?>','<?php echo $month; ?>','<?php echo $day; ?>');

and bellow is my url.


in this code i got an javascript error."document.getElementById('countbox')is null".
please help me.


  • anthrax11anthrax11 Posts: 511Member
    The code is ran before countbox is initialized. You need to run it after the page has loaded.

    function DoGetCount()
    GetCount('<?php echo $year; ?>','<?php echo $month; ?>','<?php echo $day; ?>');

  • olivia751olivia751 Posts: 1Member

    anthrax11 is right. Your code is running before the initialization the countbox. First you declare the variable and then declare the values.


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