Open node when click on the label

Is it possible to open/close a node when clicking on the label of the node (and the image) instead on the + or - symbol.

Thanks for your reply

Can be done as

tree.attachEvent(“onClick”,function(id){
tree.openItem(id);
})

Thanks, it works great !
And if I want to close the opened item, how can I do ?
Thanks in advance
Christophe

Just a bit more of code

tree.attachEvent(“onClick”,function(id){
if (tree.getOpenState(id)==1)
tree.closeItem(id);
else
tree.openItem(id);
})