viewing the form variables that are being submitted

[yawnmoth]

<form action="">
<input type="submit" name="a" value="Submit">
<input type="submit" name="b" value="Save">
</form>

<script>
function zzz() {
var vars = '', e = this.elements;
for (i=0;i<e.length;i++)
vars+= e.name + '=' + e.value + '&';
alert(vars);
}

for(i=0;f=document.forms;i++)
f.onsubmit=zzz;
</script>

If you hit either submit button you'll get an alert box with
"a=Submit&b=Save&" in it. The resultant URL, however, will only have
one of them set. ie. "b=Save" or "a=Submit" but not both.

My question is... is it possible, in javascript, to view not what
form elements exist but what form variables will be submitted?

My goal is to adapt this into a bookmarklet that I can use on
arbitrary websites.

 

[Jeremy J Starcher]

On Fri, 01 May 2009 12:02:32 -0700, yawnmoth wrote:

[ Form and code snipped ]

My question is... is it possible, in javascript, to view not what form
elements exist but what form variables will be submitted?

My goal is to adapt this into a bookmarklet that I can use on arbitrary
websites.

You might want to try reading this:

http://groups.google.com/group/comp.lang.javascript/browse_thread/thread/
e4859563aabaf768/dec455c027d3154c?q=serialize+form&lnk=ol&

 

[Justin McConnell]

If you hit either submit button you'll get an alert box with
"a=Submit&b=Save&" in it.  The resultant URL, however, will only have
one of them set.  ie. "b=Save" or "a=Submit" but not both.

In any given form, only one input with type submit can be successful.
Only controls that are successful will be submitted as part of the
form data.

http://www.w3.org/TR/html401/interact/forms.html#successful-controls

 

[SAM]

Le 5/1/09 9:02 PM, yawnmoth a écrit :

<form action="">
<input type="submit" name="a" value="Submit">
<input type="submit" name="b" value="Save">
</form>

<script>
function zzz() {
var vars = '', e = this.elements;
for (i=0;i<e.length;i++)
vars+= e.name + '=' + e.value + '&';
alert(vars);
}

for(i=0;f=document.forms;i++)
f.onsubmit=zzz;
</script>

If you hit either submit button you'll get an alert box with
"a=Submit&b=Save&" in it. The resultant URL, however, will only have
one of them set. ie. "b=Save" or "a=Submit" but not both.

Usually both (or all) submit buttons have same name, and it is the sent
value that gives the information about which one was clicked.

My question is... is it possible, in javascript, to view not what
form elements exist but what form variables will be submitted?

I think no.

Except

My goal is to adapt this into a bookmarklet that I can use on
arbitrary websites.

With which navigator ?