Checkbox validation

[Pico_Train]

I always struggle with this one. This isn't working in IE.

function validateReport(form)
{
var is_error = false;

var checkSelected = false;
for (var i = 0; i < document.getElementsByName('type[]').length; i++){
if (document.getElementsByName('type[i]').checked)
checkSelected = true;
}

if (document.getElementById('user').value == 0){

modContent('error_msg', '<i>*Please select a user for this report.</i>');
showElement('error_msg');
is_error = true;

}else if(!checkSelected){

modContent('error_msg', '<i>*Please select at least 1 type of record for your report.</i>');
showElement('error_msg');
is_error = true;

}else if (document.getElementById('start_date').value == ''){

modContent('error_msg', '<i>*Please enter a start date for your report.</i>');
showElement('error_msg');
is_error = true;


}else if (document.getElementById('end_date').value == ''){

modContent('error_msg', '<i>*Please enter an end date for your report.</i>');
showElement('error_msg');
is_error = true;

}

if (is_error == false){

hideElement('error_msg');

}

return is_error;

}

It gets stuck and doesn't realise one checkbox is ticked. Any help would be greatly appreciated, thanks!

[Fotiman]

if (document.getElementsByName('type[i]').checked)

Is probably supposed to be:

if (document.getElementsByName('type[' + i + ']').checked)

[Pico_Train]

Nope that's not it but thanks, still gets stuck. FF doesn't give an error either.

[Pico_Train]

Got it now, thanks for the help Fotiman!