Checkbox and array problem...

[Nematoth]

I've tried searchign for the answer to this already but I just can't figure it out I hope someone can help.

I have a set of four checkboxes and I want one of them to be selected before the form is submitted. Now this sounds simple I know.. but I can't get it to work. Here's the code for the form:

<form name="addbook" method="POST" action="<?=$sFileName?>">

<input type="checkbox" name="bookid[]" value="<?=$flda_bookid?>" class="blacktext01">
<input type="hidden" name="FormAction" value="addphone">
<input type="hidden" name="FormName" value="addbook">
<input type="hidden" name="forwardURL" value="recip_but.php">
<a href="#" target="_self" onclick="checkForm();"><img src="images/but_add01.gif" width="85" height="39" border="0"></a>
</form>

And the code on the button:

function checkForm()
{
	var noChecked =0;
	for(var i = 0; i < document.addbook.elements.length; i++)
	{
		if(document.addbook.elements.checked)
		{
			noChecked++;
		}
	}
	if (noChecked !=1) 
	{
		alert("Please select ONE name then click Add. Number of checkboxes checked:"+noChecked);
		//alert("Please select ONE name then click Add/n/n"+document.addbook.elements.length);
		return false;
	}	
	else 
	{
		alert("Submitting form");
		document.addbook.submit();
	}
}
</script>

I've tried all sorts of things and this is where the code currently stands at.. I'm am sureit is something simple..

Basically I need to check if the checkbox array, bookid[] is checked or not..

Many thanks to anyone who can help..

Nematoth

http://www.etv.com.my

 

[boelem]

Hi Nematoth,

I see only one checkbox in the form (bookid[])

Try "if (document.addbooks.elements.checked)"

If you want exactly one book checked, why not use a radiogroup? Initially have a dummy option (first option) in the group checked (saying "Notting selected" or something) and then (on form submit) check if this dummy is still selected: if so alert, else submit.

Hope that helps,

Boelem