renaming odd and even files with two different outputs

Hey Guys,

i tried it in the last hours but my JavaScript is just to rusty to get a solution on my own and i was unable to find something on the net and maybe im already to deep inside the box to see a solution...

I need to rename files like:

0001-Name_of_file.jpeg
0002-Name_of_file.jpeg
0003-Name_of_file.jpeg
0004-Name_of_file.jpeg
0005-Name_of_file.jpeg
0006-Name_of_file.jpeg

To this schema:

New_Name_001.jpeg
New_Name_001v.jpeg
New_Name_002.jpeg
New_Name_002v.jpeg
New_Name_003.jpeg
New_Name_003v.jpeg

They need to stay in the original order because they are pages. Has anyone a idea?

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Reply to #1:
Try this script:

newName = "New_Name";
n = parseInt((item.name.split('-'))[0])+1;
subscript = "";
if ((n % 2) == 1) {subscript = "v"};
return newName + "_" + ("00"+Math.floor((n)/2)).slice(-3) + subscript;

Obviously, replace "New_Name" as appropriate.

www.w3schools.com/jsref is a good source of help with the syntax.

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Reply to #2:
David, thank you so much! Thats exactly the solution and i learned a lot - thank you!

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