onBeforeSelect

fires before an item is selected, cancelable

id	string	id of the item to select
lastId	string	id of the previously selected item, if any

boolean

true|false to allow/cancel selection

Example

mySidebar.attachEvent("onBeforeSelect", function(id, lastId){
    // your code here
    return true;
});

Related samples

return true|false to allow/cancel selection

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