Recursive tree item getter for tree.

getChildren

var getChildren = function(model, item){
    children = [];
    if (model.mayHaveChildren(item){
        var ch = model.getChildren(item);
        dojo.forEach(ch, function(child){
            children.push(child)
            children = children.concat(getChildren(model, child));
        });
    }
    return children;
}

dojo.connect(tree, "onClick", tree, function(item){
     return getChildren(this.model, item);
});