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Dynamic Visible/Hidden Input Box

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Jan 27.2003

I am looking for some JavaScript code that I can place in an ASP to be used with Netscape. The JavaScript code must be executed when a specific selection is made in a pulldown box. Based on the selection, the JavaScript will then display a blank text box for input.

For example: On a Form generated by ASP, I have a pulldown box. The pulldown contains the following values:

A, B, C, D.

If B is chosen, I need a blank text box to become visible and available for input. Otherwise, the text box remains hidden.

Thanks in advance for your help.

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JavaScript

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@gil_davisJan 27.2003 — [i]Originally posted by hilmesb [/i]

[B]I am looking for some JavaScript code that I can place in an ASP to be used with Netscape.[/B][/QUOTE]What version?
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@hilmesbauthorJan 27.2003 — Netscape Version 4.61.
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@gil_davisJan 27.2003 — NS 4 will not allow you to hide parts of forms. You can either

  • 1. hide the whole form.


  • 2. split the form into many forms and hide one (real pain to put it all back together for submission).


  • 3. use document.write() to rebuild the form with the added field.


  • 4. make two documents - one with the partial form and one with the whole form.


  • 5. use the CLIP feature of a layer (hidden field must be last in form).


  • 6. give up.


    • Here is an example of 5:

    [font=monospace]<ilayer name="l1" height=100 clip=0,0,600,50 bgcolor="teal">

    <form name="MainForm" action="upload5.jsp" ENCTYPE="multipart/form-data" method="POST">

    <input type="button" value="check" name="btnCheck1" onClick="window.document.layers.l1.clip.bottom=75">

    <br>

    <input type=submit value=submit>

    <br>

    <input type="file" name="file1"

    </form>

    </ilayer>

    <p>More stuff[/font]
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