Resolved Problem with HTML Select in PHP

[jasejunk]

Hello all.
I am working to build my first full site, which happens to be a site for my clothing company.
I have a fairly strong working knowledge of PHP and HTML, and a decent grasp of Javascript.
What I'm trying to do is pass a variable for shirt sizes (contained in a dropdown select box) with PHP.
I have PHP generated pages for all of my shirts, and each contains the same dropdown:

PHP Code:

    echo "<br><br><form action='cart.php?chk=add_to_cart&pid=";
    echo $gRow['ID'];
    echo "&amp;size=";
    echo "<script>document.write(size);</script>";
    echo "' method='post' name=\"sizeform\"><select name=\"size\" onChange=\"_chkSize(this)\"><option value='1'>Small</option><option value='2'>Medium</option><option value='3'>Large</option></select>";
    echo "<br /><br /><input type='image' name='Add to Cart' alt='Add to Cart' value='Add to Cart' src='/images/add.png'></form>"; 


This script calls _chkSize(), which is a javascript function, and is supposed to pass the size from the dropdown to the javascript variable "size".

Any advice you can give would be very helpful. I have programmed almost all of this site from scratch with ease, but this part is hanging me up.

I can provide any more information that may be needed, and I understand that this explanation was sub-par, but it was difficult to explain :P

[FlyingRat]

I think we need to know what isn't happening as expected.

[jasejunk]

Can do. The variable simply isn't being set. I believe that the code I have posted above is supposed to perform the function specified each time the dropdown selection is changed, but the variable is set to "" instead.

[oesxyl]

try this:

PHP Code:

$url = 'cart.php?chk=add_to_cart&pid="' . $gRow['ID'] . '"';
echo "<br><br>
<form action='". $url . "' method='get' name='sizeform'>
<select name='size'>
<option value='1'>Small</option>
<option value='2'>Medium</option>
<option value='3'>Large</option></select>
<br /><br />
<input type='image' name='Add to Cart' alt='Add to Cart' value='Add to Cart' src='/images/add.png'>
</form>"; 


I changed method to get and removed size from action url since you don't need it because is already the value of select.

best regards

[jasejunk]

Thanks very much, oesxyl.
I got it to work using a slightly modified version of your code, as the 'get' method was causing some strange reactions for some reason.
I used 'post' instead, and it worked like a charm.