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Submitting Form Var Problem - PHP Development

I have two dropdown list: frm_cbo_top frm_cbo_bottom I have an OnChange="submit_form();" in each of these dropdown lists - the javascript does a form.submit() call The problem is that the post .php file which gets called *always* catches this line: if ($frm_cbo_top) { // do some work } Even when I make a selection in the bottom dropdown object the $frm_cbo_top var if statement is active because the code flow goes into the section - I want the $frm_cbo_bottom to catch is I select that dropdown and the $frm_cbo_bottom to catch if I select that dropdown - what am I missing ...

  1. #1

    Default Submitting Form Var Problem

    I have two dropdown list:

    frm_cbo_top

    frm_cbo_bottom


    I have an OnChange="submit_form();" in each of these dropdown lists -
    the javascript does a form.submit() call

    The problem is that the post .php file which gets called *always*
    catches this line:

    if ($frm_cbo_top)
    {
    // do some work
    }

    Even when I make a selection in the bottom dropdown object the
    $frm_cbo_top var if statement is active because the code flow goes
    into the section - I want the $frm_cbo_bottom to catch is I select
    that dropdown and the $frm_cbo_bottom to catch if I select that
    dropdown - what am I missing here?

    Thanks...


    Ralph Freshour Guest

  2. #2

    Default Re: Submitting Form Var Problem

    "Ralph Freshour" <ralphprimemail.com> wrote in message
    news:usa2qvoupoers1gelqidfj8dutgt6ifmml4ax.com...
    > I have two dropdown list:
    >
    > frm_cbo_top
    >
    > frm_cbo_bottom
    >
    >
    > I have an OnChange="submit_form();" in each of these dropdown lists -
    > the javascript does a form.submit() call
    >
    > The problem is that the post .php file which gets called *always*
    > catches this line:
    >
    > if ($frm_cbo_top)
    > {
    > // do some work
    > }
    >
    > Even when I make a selection in the bottom dropdown object the
    > $frm_cbo_top var if statement is active because the code flow goes
    > into the section - I want the $frm_cbo_bottom to catch is I select
    > that dropdown and the $frm_cbo_bottom to catch if I select that
    > dropdown - what am I missing here?
    >
    > Thanks...
    >
    frm_cbo_top is being submitted in the form with the value currently
    selected, even if you use the bottom select box.

    Give frm_cbo_top an empty default selected value:

    <OPTION VALUE="" SELECTED>Select a value</OPTION>

    and test for that in PHP:

    if($frm_cbo_top != '')

    HTH


    jn Guest

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