Can't make a sum of array

[mgameulstee]

function refresh_item()
{
boxes = document.creatureedit.npcflag.length;
var get_item = '';
for (i = 0; i < boxes; i++) {
if (document.creatureedit.npcflag[i].checked) {
get_item = get_item += document.creatureedit.npcflag[i].value;
}
}
alert(get_item);
if (opener.document.forms['creatureedit'].npcflag.value)
{
opener.document.forms['creatureedit'].npcflag.value = get_item;
}
opener.focus();
window.close();
}

Hi i just spending this afternoon for this i cant get the som of npcflag

[Twey]

私達はmgameulsteeをわかりません。英語を話して下さい。

[mgameulstee]

Sorry forgot it was a english forum

[mburt]

mdfioVHJ EJKLfh VKLJErhm3n4i12jo3ij190!!

[mburt]

I think what he ment to imply was that we're not clear on the question

[Twey]

Sorry forgot it was a english forum

Lol, no problem.

function refresh_item()
{
  var a = document.forms['creatureedit'].elements['npcflag'],
    b = 0,
    i;
  for (i = 0; i < a.length; ++i)
    if (a[i].checked)
      b += parseFloat(a[i].value);
  if (typeof (a = window.opener.document.forms['creatureedit'].elements['npcflag']).value !== "undefined")
    a.value = b;
  window.opener.focus();
  window.close();
}

[mgameulstee]

Thank you so much that work