fires before the context menu is called in the item area
id | string | the id of the clicked item |
e | Event | a native event object |
node | HTMLElement | the target HTML element |
boolean | returning false will block the event |
$$('list').attachEvent('onBeforeContextMenu', function(id, e, node){
if (some_check(id))
return false; //blocks the context menu
else
return true;
});