[Javascript] Fields required

Mike1961

Hi all.

I have this web page:

Expand|Select|Wrap|Line Numbers

 
<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 ?

Jun 6 '08 #1

Subscribe Post Reply

1398

gits

5,390

Expert Mod 4TB

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

Jun 6 '08 #2

Mike1961

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?

Jun 6 '08 #3

gits

5,390

Expert Mod 4TB

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

Jun 7 '08 #4

Mike1961

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.... :(

Jun 7 '08 #5

gits

5,390

Expert Mod 4TB

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:

Expand|Select|Wrap|Line Numbers

 function chk_form() {

    var n = document.getElementById('my_id_for_B');
 
    return (n.value == 1);

}

and in you html code you should have:

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

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

Jun 8 '08 #6

Mike1961

Many thanks...
kind regards

Jun 9 '08 #7

gits

5,390

Expert Mod 4TB

no problem ;) ... post back to the forum anytime you have more questions ...

kind regards

Jun 9 '08 #8

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