[Javascript] Fields required

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  • Mike1961
    New Member
    • Apr 2008
    • 66
    #1

    [Javascript] Fields required

    Hi all.

    I have this web page:

    Code:
    <html>

<head>

</head>

<body>

<form method="POST" action="go.asp">

<select size="1" name="A">
<option>Select</option>
<option value="POSITIVE">POSITIVE</option>
<option value="NEGATIVE">NEGATIVE</option>
</select>

<select size="1" name="B">
<option>Select</option>
<option value="0">Open</option>
<option value="1">Close</option>
</select>

<input type="submit" value="GO" name="B1">

</form>
</body>

</html>
    If select value positive or negative in the select "A", in the select "B" required value 1, would say "Close".

    If select value 2 would say "Open" in the select "B" stop the form, its possible?

    Can you help me ?
    Tags: None
    • gits
      Recognized Expert Moderator Expert
      • May 2007
      • 5388
      #2
      hi ...

      i'm a little bit confused ... could you try to explain it a bit better? what should happen when you select an option in the first select-box and what should happen in case of a selection in the second one? i cannot see any value="2"?

      kind regards

        Comment

        • Mike1961
          New Member
          • Apr 2008
          • 66
          #3
          Originally posted by gits
          hi ...

          i'm a little bit confused ... could you try to explain it a bit better? what should happen when you select an option in the first select-box and what should happen in case of a selection in the second one? i cannot see any value="2"?

          kind regards
          Sorry Gits... I wrong...

          If select value positive or negative in the select "A", in the select "B" required value 1, would say "Close".

          If select value 0 would say "Open" in the select "B" stop the form.

          For example:

          Select A ===> POSITIVE or NEGATIVE value
          Select B ===> CLOSE ( value=1 ) ===> it's right

          Select A ===> POSITIVE or NEGATIVE
          Select B ===> OPEN ( value = 0 ) ===> it's wrong and the stop the form


          You understand?

            Comment

            • gits
              Recognized Expert Moderator Expert
              • May 2007
              • 5388
              #4
              so the select A is irrelevant and you just need to check the selected value of select-node B ... :) check it when clicking the submit-button or onsubmit of the form

              kind regards

                Comment

                • Mike1961
                  New Member
                  • Apr 2008
                  • 66
                  #5
                  Originally posted by gits
                  so the select A is irrelevant and you just need to check the selected value of select-node B ... :) check it when clicking the submit-button or onsubmit of the form

                  kind regards

                  I do not understand.... :(

                    Comment

                    • gits
                      Recognized Expert Moderator Expert
                      • May 2007
                      • 5388
                      #6
                      as you see ... the only thing that has to be checked is the value of select-node B ... since you said that pos or! neg could have been selected in A in any case, while the form shouldn't be submitted when node B has a value of 0. just give your node an ID and call a function onsubmit of the form ... here is an example:

                      [CODE=javascript]function chk_form() {
                      var n = document.getEle mentById('my_id _for_B');

                      return (n.value == 1);
                      }[/CODE]
                      and in you html code you should have:

                      [HTML]<form method="POST" action="go.asp" onsubmit="retur n chk_form();">
                      [/HTML]
                      and even the ID:

                      [HTML]<select size="1" id="my_id_for_B " name="B">
                      [/HTML]
                      kind regards

                        Comment

                        • Mike1961
                          New Member
                          • Apr 2008
                          • 66
                          #7
                          Many thanks...
                          kind regards

                            Comment

                            • gits
                              Recognized Expert Moderator Expert
                              • May 2007
                              • 5388
                              #8
                              no problem ;) ... post back to the forum anytime you have more questions ...

                              kind regards

                                Comment

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