i have a strange behavior on my webpage on my local computer.
i have 2 forms. One of them is defined as following:
<form class='form-validate view' id='siteForm' name='siteForm' method='post' action='<?php echo $url; ?>' >
   <!-- blah, blah -->
   <a class="delete" href="#" title="Delete selected records" onclick="alert(document.siteForm.boxchecked.value);">
      <span class="trash-icon"></span>
   <!-- blah, blah -->													
   <input type="hidden" name="boxchecked" value="" />
during runtime user can tick checkboxes and a javascript function updates the value of input field called boxchecked (this works very well)

my problem:
- if user click on the link, the alert message does not display any data... (the code on onclick is just temporary)

if i want to retrieve the value and display it correctly, i must use:
instead of:
why ?
it's like js is not able to find the siteForm form object