Re: Help selecting multiple checkboxes based on partial value

Thanks!
This looks like it works for all checkboxes within the form. That
means the buttons also have to be within the form. If the buttons
were not placed within the form, is there some way to make the onclick
action check all checkboxes on the entire page?

I see now.

I did discover 1 small problem when i adjusted the code to change the
buttons to check boxes.

<script type="text/javascript">
function f(frm, val) {
var len = frm.elements.length;
for (var i=0;i<len;i++) {
if (('checked' in frm.elements[i]) &&
(frm.elements[i].value.indexOf(val,0) != -1)) {
frm.elements[i].checked = !frm.elements[i].checked;
}
}
}
</script>


<INPUT onclick="f(this.form, '1##')" type=checkbox
name=CheckOnlySlipHeaders> <b>
<font face="Arial" style="font-size: 11px" color="#666644">
Select All Billing Slip Headers</font></b>

<INPUT onclick="f(this.form, '81#')" type=checkbox
name=CheckOnlyPatReg> <b>
<font face="Arial" style="font-size: 11px" color="#666644">
Select All Patient Registration Forms</font></b>



The first checkbox that is supposed to select any box starting with
the value 1## is actually checking any box containing 1##. So it
selects more boxes that it is supposed to.

For example it selects:
21##
61##
81##

But it does not select:
22##
23##
Because the do not contain 1##.

Is there a way to change this from 'containing' to 'starting with' ?

I think i fixed it...

I changed
frm.elements[i].value.indexOf(val,0) != -1))
to
frm.elements[i].value.indexOf(val,0) == 0))

I will test fully on Monday when i am in the office and see if i need
more tweaking.

Thanks for the help so far!

On Mar 10, 1:18 am, JL <justin.la... (AT) gmail (DOT) com> wrote:

I think i fixed it...

I changed
frm.elements[i].value.indexOf(val,0) != -1))
to
frm.elements[i].value.indexOf(val,0) == 0))

Right! And sorry, that is what I meant to type:

frm.elements[i].value.indexOf(val) == 0

so the 0 in argument is not needed; sometimes you think one things but
your fingers are typing what they used to ( == -1 is the most
casual). :-)

It also can be made as a RegExp check, I just wanted to keep things as
simple as possible, so used indexOf instead.