Under what circomstances inNetscape could findLayers try to look at "undifined"
Um.. maybe not clear enough..
 
isDirectChildOf was chrashing on "l is not an object"
I added an alert and it seemd that while the function was getting called mainly with real layers.. there is one that is not..
 
I have no idea what caused this and will apprecieate any input..
 
The following line should be added to isDirectChildOf as the first line:
 if (!l||!parent){return false;}

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