popup alert if no check boxes are selected
have a multiple add to cart form, which inserts into the cart array if the checkbox is checked
want to popup a message to warn if nothing is checked, before form is posted.
got this, but alert pops up everytime, even if checkbox is checked.
<script type="text/javascript">
function addToBasket(form) {
var isChecked = false;
if ( document.forms['add_to_cart'].elements['atccheck[]'].checked == true) {
isChecked = true;
}
else {
for ( var i=0; i < document.forms['add_to_cart'].elements['atccheck[]']; i++) {
if ( document.forms['add_to_cart'].elements['atccheck[]'][i].checked == true ) {
isChecked = true;
break;
}
}
}
if ( isChecked == false ) {
alert("Please select a spring. Then press 'Add to Basket'.");
}
else {
form.submit();
}
}
</script>