a (slightly) advanced photoshop actions question:

[SooTyLaD]

hi guys...

what i need to be able to do as an action is make the canvas a square...

if an image is 200x400 i need it to become 400x400, if its 230x280 i need 280x280 see? whichever dimension is bigger, i want the other dimension increased to the same...

i've been playing but cant work out a technique for this and have got a feeling it would involve some sort of scripting... any ideas?

 

[SooTyLaD]

basically i have many images that need to be made into a square, but they all vary in size so cant just do a standard canvas size action...

how can you get php into photoshop thats well cool - is that the format of the actions?