How do I truncate a string, and keep the last value?

[3dron]

I have a bunch of thumbnails created by attachMovie.

Then when you click on one, I use "this" which returns me the complete mc path to this tumbnail icon.

I only want the last part which is a number. And sometimes it is more than one character.

Example:
_level0.Stage.thumbNail12

newVar = this; (returns me the whole mc)

I want to extract the number "12" at the end, and set another variable equal to only the 12.


Does this make sense?

Ron

[sbeener]

here's a prototype that will parse backwards through a movie's name, once it hits a non number character, it returns everything it's parsed. if there are no non-number characters, the whole name is returned.



MovieClip.prototype.returnNum = function(){
var s = this._name;
var i = s.length
while(i--){
if(isNaN(s.charAt(i))) break;
}
return s.substr(i+1);
}