Passing Arguments on onClick()

[Galsaba]

How can I send back an argumet with "onClick"?

<a href=test.php onClick="checkLink ('Gallon')" > 1 Gallon</a>
function checkLink(a)
{
return (a+3)
}
When the user click on the word "Gallon"
I want the value "Gallon" to go to session_var

[Vincent van Beveren]

You can't do that directly. You'll have to call a PHP script for that,
somehow or another.. (or use cookies instead, but thats pretty
complecated and might not help you that much)

You might wanna do the following for example:

<a href=# onClick="checkLink('Gallon');" > 1 Gallon</a>

function checkLink(s) {
location.href='test.php?checklink='+escape(s);
}

This will send checklink as parameter to test.php. Now in PHP you can
retrieve that values by getting get get values... depending on your PHP
configuration either the variable $checklink exists or you'll have to do
with with the (I thought, but I'm not totally sure) $_GET['checklink']
variable.

There are serveral other solutions. For example, you could open a popup
window, and process the value there, or you could build a forward
page... like:

location.href='forward.php?checklink='
+escape(s)+'&link='+unescape(link);

forward.php would then first process the value of checklink and then
forward to $link (see HTTP response codes, and the PHP header() function)

Good luck,
Vincent

[kaeli]

In article <20***************************@mb-m28.aol.com>,
ga*****@aol.com enlightened us with...

How can I send back an argumet with "onClick"?
You assign the return value to a variable.
onClick="var a=checkLink('Gallon');"


<a href=test.php onClick="checkLink ('Gallon')" > 1 Gallon</a>
function checkLink(a)
{
return (a+3)
}
When the user click on the word "Gallon"
I want the value "Gallon" to go to session_var

If that's a real session variable, you can't do that. Session variables
are interpreted on the server. Javascript runs on the client. By the
time the JS runs, the server is done processing the request and has sent
it to the client.
--
--
~kaeli~
Punctuation, capitalization, and grammar are your friends,
and will help people think that you aren't such an ignorant
moron, after all.
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