I want to get the user's choice of some menu items, and pass them to a
(PHP) page in the URL, rather than with "Submit" button. I tried
this, but it doesn't work:
<a href="pagetwo.p hp?says=meaning "><img src="smiley.gif "></a>
Pick one from drop-down menu:
<p>
<form>
<select name=meaning>
<option>Dopey
<option>Sneez ey
<option>Grump y
</select>
</form>
Jul 23 '05
16  9536 
Ben Sharvy wrote: I want to get the user's choice of some menu items, and pass them to
a (PHP) page in the URL, rather than with "Submit" button.
What is wrong with a submit button? If you want to pass the data using
via url, then use the GET method:
<form method="get" action="myscrip t.php">
I tried this, but it doesn't work:
<a href="pagetwo.p hp?says=meaning "><img src="smiley.gif "></a>
Pick one from drop-down menu:
<p>
<form>
<select name=meaning>
<option>Dopey
<option>Sneez ey
<option>Grump y
</select>
</form>
A form can only pass information via http. You can try js to accomplish
this, perhaps by modifying the href attribute of an <a> element, but why
go through all that bother when a basic form will work? That is, after
all, what the <form> element is meant for.
--
Brian (remove "invalid" to email me) http://www.tsmchughs.com/
"Brian" <us*****@juliet remblay.com.inv alid> wrote in message
news:wg******** *************@b gtnsc04-news.ops.worldn et.att.net... Harlan Messinger wrote: <script type="text/javascript">
document.write ('<a onclick="docume nt.forms['myForm'].submit();"><im g
src="smiley.gif "></a>');
</script>
Use script to write this link, because if Javascript support is
unavailable or turned off then the link wouldn't work anyway. In that
case, it's replace below, inside a NOSCRIPT element, by the Submit
button that you're trying to avoid.
This is not the best authoring practices. What if js is enabled but the
code contains an error?
Don't use programming because it might be in error? Following that
philosophy, none of the software you use every day would have ever gotten
out the door. Obviously when anyone publishes software, it's after they're
satisfied that it's basically correct. Presumably, the man is going to
*test* his page before he releases it. It won't take him long to fully test
it--this isn't control software for satellite deployment or anything like
that.
Neither the js submit nor the <noscript> submit
button will be available.
If he accidentally types
<input type="sbumit" ...
the page will also be broken.
Better solution: create a fully functioning <form>, and use js to modify
the dom, removing the <input type=submit> and adding a js submit
mechanism.
But then, the best solution for the op is to KISS, and use a normal form.
For the most part I agree.
Harlan Messinger wrote: "Brian" wrote...
Harlan Messinger wrote:
<script type="text/javascript">
document.write ('<a
onclick="docume nt.forms['myForm'].submit();"><im g
src="smiley.gif "></a>');
</script>
Use script to write this link, because if Javascript support is
unavailable or turned off then the link wouldn't work anyway. In
that case, it's replace below, inside a NOSCRIPT element, by the
Submit button that you're trying to avoid.
This is not the best authoring practices. What if js is enabled but
the code contains an error?
Don't use programming because it might be in error?
No. Use programming in the safest way possible. In the context of the
www, that means start with a page that functions without js, then add js
to change that page if js is enabled. If you code the js correctly, then
the page will work when js is disabled; it will work when js is enabled
but the code goes awry; and it will work when js is enabled and works.
Presumably, the man is going to *test* his page before he releases
it.
This is the www, though. Noone can test in every release of every
browser. At least in principle, a browser can implement some js, but not
the document.write method. In that case, your suggestion would fail,
since the browser would not write the js link, but, since js is enabled,
it would ignore the contents of the <noscript> element. Neither the js submit nor the <noscript> submit button will be
available.
If he accidentally types
<input type="sbumit" ...
the page will also be broken.
Fair enough, but a validator will point out that error. I suppose a js
debugger might point out js bugs, but I'm not sure it can pick up all
possible problems. You might write code that is free from errors, and
works in MSIE and Mozilla, but fails because of a js bug in Opera
7.1/WinXP. If you don't test in that particular version of Opera, you've
got a problem.
Take the op's request: instead of document.write, you create a js
routine that adds an onsubmit handler or a new link, then removes the
<input type="submit"> from the DOM. If some browser chokes on the code,
it will never get to the remove part of the script, and the page will
still work. Such a routine is not fool-proof, but is much safer than
assuming your code will always execute correctly.
--
Brian (remove "invalid" to email me) http://www.tsmchughs.com/
Brian wrote: Harlan Messinger wrote:
Brian wrote...
Don't use programming because it might be in error?
No. Use programming in the safest way possible.
That is, "No, I don't mean that you shouldn't use a programming language
because it might be in error. I only mean that you should use a
programming language in the safest way possible."
--
Brian (remove "invalid" to email me) http://www.tsmchughs.com/
Brian <us*****@juliet remblay.com.inv alid> wrote: Harlan Messinger wrote:
[snip]
Presumably, the man is going to *test* his page before he releases
it.
This is the www, though. Noone can test in every release of every
browser. At least in principle, a browser can implement some js, but not
the document.write method.
Isn't document.write an ancient, core Javascript method? I think it's
fair to assume that *if* a browser implements Javascript, it
implements its core functionality, at least to the extent that we
assume that browsers that implement HTML implement submit buttons.
In that case, your suggestion would fail,
since the browser would not write the js link, but, since js is enabled,
it would ignore the contents of the <noscript> element.
Neither the js submit nor the <noscript> submit button will be
available.
If he accidentally types
<input type="sbumit" ...
the page will also be broken.
Fair enough, but a validator will point out that error. I suppose a js
debugger might point out js bugs, but I'm not sure it can pick up all
possible problems. You might write code that is free from errors, and
works in MSIE and Mozilla, but fails because of a js bug in Opera
7.1/WinXP. If you don't test in that particular version of Opera, you've
got a problem.
A version of Opera could just as easily come out with a bug in the
submit button.
Take the op's request: instead of document.write, you create a js
routine that adds an onsubmit handler or a new link, then removes the
<input type="submit"> from the DOM. If some browser chokes on the code,
it will never get to the remove part of the script, and the page will
still work. Such a routine is not fool-proof, but is much safer than
assuming your code will always execute correctly.
I thought you were kidding when your first suggested that.
Interesting, on second thought. But--I believe document.write has
older and broader support than does DOM/DHTML code that can remove
elements.
--
Harlan Messinger
Remove the first dot from my e-mail address.
Veuillez ôter le premier point de mon adresse de courriel.
Harlan Messinger (hm************ *******@comcast .net) wrote:
: Brian <us*****@juliet remblay.com.inv alid> wrote:
: >Harlan Messinger wrote:
: [snip]
: >> Presumably, the man is going to *test* his page before he releases
: >> it.
: >
: >This is the www, though. Noone can test in every release of every
: >browser. At least in principle, a browser can implement some js, but not
: >the document.write method.
: Isn't document.write an ancient, core Javascript method? I think it's
: fair to assume that *if* a browser implements Javascript, it
: implements its core functionality, at least to the extent that we
: assume that browsers that implement HTML implement submit buttons.
I don't think he ever meant to suggest that any browser might have a bug
with document.write, I'm sure that choosing "document.write " was just the
easiest possible way to illustrate his point.
I more realistic bug might be something like "...an incompatibility with
the dom model when multiple frames are in use after selecting the back
button...". But if he's going to make up a bug (like I just did), why not
make up a bug that is simpler to explain?
And in my hyperthetical example, sure enough, his code would probably not
be able to remove the submit link due to the hyperthetical
"incompatibilit y with the dom model", and therefore the form would still
have at least one way to do the submit.
"Harlan Messinger" <hm************ *******@comcast .net> a écrit dans le
message de news:6p******** *************** *********@4ax.c om The code I
provided wasn't meant to be inserted into the form, it was meant to
replace the link the OP was trying to use, in the same position.
Oh, OK. I missed that. Thanks This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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