onCheckboxClick

fires when the user clicks any checkbox item

id	string|number	id of the clicked checkbox item
state	boolean	current checkbox state (true for checked)
zoneId	string|number	context menu zone, if a menu rendered in the context menu mode
cas	object	state of CTRL/ALT/SHIFT keys during the click (pressed/not pressed)

Example

myMenu.attachEvent("onCheckboxClick", function(id, state, zoneId, cas){
    // your code here
    // ...
 
    // cas example
    if (cas.ctrl == true) {
        // open in a new tab
    } else {
        // open on the same page
    }
 
    // allow checkbox to be checked
    return true;
});

The cas object has the following structure (true if a key was pressed during the click):

{
    ctrl:   true/false,
    alt:    true/false,
    shift:  true/false
}

The event is cancellable, to allow checkbox to be checked you need to "return true".

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