Return ids only after done cascading

[mikaelgu80]

I'm using ComboTree to filter data in php. The way it currently works when cascading is, that the array of selected ids grows one by one and it then makes the Ajax call multiple times. I think it would be better if the selected ids (or names) are returned only after the array is fully built when cascading a selection. I tried to modify the code, but it's beyond my knowledge. Any help appreciated.