exporting all the layers

[aka]

Hi,

I please need a script which exports all the layers, one by one, in png format.

The result could be something like :

1_nameLayer1.png
2_nameLayer2.png
3_nameLayer3.png
..

Where 1, 2, 3,.. are respectively the positions (levels) of the layers nameLayer1, nameLayer2, nameLayer3,.. of the gimp image file ; I need to keep the transparency.

It is unfortunately impossible for me to install the gimp pyton module, so, does please this scrpit exist in gimp by an other way ?

Thanks