strings maybe?

hey every body... im working with a picture viewer... and like what i want to happen when you click one of the pictures is for it to load the same picture number from a different source...

so what i have now is when you press one of the pics, it traces which pic it is.... for example

Code:

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_level0.images.pic15.pic

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or

Code:

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_level0.images.pic2.pic

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now i just need the part where it says pic# so i thought i would try to rid it from every thing else but that part...

here is my feeble attempt

Code:

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trace(this.pic.substring(16, myLOC.length-4))

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but its not working for some reason... do i have to make this.pic a string before this is done or something?

thank you for any responses...

assuming that is the result for:

Code:

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trace(this);

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you should try:

Code:

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trace(this._parent.name);

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it was on the main time line... so i changed it to _root... but its still comming up undefined

would i have to identify this.pic as a string or something?