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dhtmlxaccordion
Events

# onBeforeActive

This event calls user-defined handlers (if there are any) and passes the following parameter:

- itemId - the id of an item.

    dhxAccord.attachEvent("onBeforeActive", function(itemId){
       // code here
       return true; // item will be opened
       return false; // item will not be opened
    });
       // or
    function doOnBeforeActive(itemId){
       // code here
       return true; // item will be opened
       return false; // item will not be opened
    });
    dhxAccord.attachEvent("onBeforeActive", doOnBeforeActive);