fiqs8stwme6s806a

Hi everybody

i am trying to get the selected node of a tree and i did it like this:


function getActive{
var tree = document.getElementById('tree');
var sm= tree.getSelectionModel();
var node = sm.getSelectedNode();
}



i found some code like the previous in this forum but it doesn´t work and i do´t know why.
could somebody tell me what i am doing wrong??
this is the mistake thata it appears in firebug:

tree.getSelectionModel is not a function

i ve tried so many things but it is like methods are not valid and i don´t know why
thanks

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