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dhtmlxTree sorting question

I have a sizeable tree (600+ nodes) that I am loading and setting "tree.enableSmartXMLParsing(1);" and I have an onClick node event to sort child nodes of the opened node however I would like to know how I can sort only those nodes that have children then in the same branch sort the leafs ?

Parent Node
[+] elephant
[+] lion
[+] tiger
[+] zebra
|-- bear
|-- giraffe

So the branch nodes get sorted separatly from the leafs ?

Make sense ? Hope you can help ?

Cheers
S

You can use custom sorting function 

tree.setCustomSortFunction(function(idA,idB){

var childA=tree.hasChildren(idA);
var childB=tree.hasChildren(idB);
//separate items with child and childless
if (childA && !childB) return 1;
if (!childA && childB) return -1;

//sorting inside groups
return (tree.getItemText(idA)>tree.getItemText(idB)?1:-1);

}

Hi there !
Perfect solution and great responsiveness ! Congratulations on a great product and keep up the good work !

Only thing I've done is switch states on returns

From...
if (childA && !childB) return 1;
if (!childA && childB) return -1;

To...
if (!childA && childB) return 1;
if (childA && !childB) return -1;

This put the folders first in the ordering and orders both branches and leafs...