[mapguide-users] Maestro Http Post method Problem

[padmini godavarthi]

Hi,
iam using mapguide opensource 2.0 (with .net 2.0 +IIS 5.1)
iam using mapguide maestro for creating packages.

i have edit the layout and added one invoke url command 
but iam unable to understand this Additinal uRL parameters?what i have to give in the key field and value!!!!!!!!!!

i  studied it in DevGuide.pdf but iam unable to get!!!!!!!!!!!!!!!!!!

Additional Parameters to an Invoke URL
Command

With this release of MapGuide, the current selection is the only variable that
can be passed as part of an Invoke URL command.
To pass the current selection, edit the web layout. Define a new Invoke URL
command. On the Additional Parameters tab, enter a key and value. The kmust be a valid HTTP POST key. For the value, enter $CurrentSelection. Add
the command to the toolbar, context menu, or task bar menu.
When the command is executed, the current selection is passed to the page,
along with the standard variables like SESSION and MAPNAME.
For example, if you define the key SEL to have the value $CurrentSelection,
then when the URL is invoked
$selection = $_POST['SEL'];
gets the current selection, in XML format.

i want the parcel_id(suppose no:476) i want this in new pop up window
for this what i have to do???????????????????????????????????????????////
if possible give me some example


plz tell me the way!!!!!!!!!!!!!!!!!!!


Thanks,
Padmini.
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