onBeforeCheck

fires before a checkbox is checked in a combo

value	string|number	option value
newState	boolean	true if an item is going to become checked

boolean

true to allow an item to be checked, otherwise - false

Example

myCombo.attachEvent("onBeforeCheck", function(value, newState){
    // your code here
    return true;
});

added in version 4.4

Back to top