how to tell if input image was clicked

[vocoder]

i'm drawing a blank here..

i have serveral images that are used as input types

lets say

<input type = "image" name = "pan" value = "north">
<input type = "image" name = "pan" value = "east">

now, when a user clicks on the button, the script calls itself

so basically i want to know when north was clicked, or when east was clicked. how do i do this? i thought using http_post_vars but it's not working

[barand]

When the user clicks an image it generates the coordinates (x,y) where the image was clicked, so check for

$HTTP_POST_VARS['north_x'] or
$HTTP_POST_VARS['north_y'] or
$HTTP_POST_VARS['south_x'] or
$HTTP_POST_VARS['south_y']

but give your images names of north, south, east and west - not all 'pan'

hth

[maybl8r03]

you should be able to reference it as per any form variable.

depending on your form method:

$_POST["pan"]

or

$_GET["pan"]

should give you the value.

[majiclab]

When using an <INPUT type="image"> tag, the browser is supposed to send the x and y coordinates of the user's click. The standard is that the x variable will be input_name_x and the y variable is input_name_y.

So, what you could do is, first you would have to have two fields that are different names:

<input type = "image" name = "pan_north" value = "north"> 
<input type = "image" name = "pan_east" value = "east"> 

And then, at the top of your file, add something like this:

if (isset($_POST[ 'pan_north_x' ], $_POST[ 'pan_north_y' ])) {
    // user clicked on pan_north
    // you can use these variables if you want the coordinates
    // $_POST[ 'pan_north_x' ] and $_POST[ 'pan_north_y' ]
}

You can just swap out all the 'north's for 'east' or whatever and it will work.

Hope that helps,

-Percy