Q: Hook javascript event to component event method

[丁振波]

There is a Tree Component to generate a js tree, and we use tree node event to 
do some operation.

How can hook javascript event to my tree component method in tml file?

such as js method here : 

function onNodeSelect(id){
   
    alert("node"+id+" selected . ");   
}

tree.setOnClickHandler(onNodeSelect);//set function object to call on node 
select