ok..
I've got an image of a radar - on the radar I'm pulling data from the database and plotting points that can be clicked on. This opens a new window displaying data on that particular point on the radar.
print"<area onClick=\"popupPage('http://www.myserver.com/radar_detail.php?idx=$row2[34]')\" shape=\"circle\" coords=\"$x_true_1,$y_true_1,6\">";
This opens a new window and I have the following code in there:
$query = " select * from database where idx = $_GET['idx'] ";
The error I'm now getting is "undefined index idx".
All help appreciated!
thanks