javascript - How to check whether jQuery handle is on or off? -

My JS code has something like the following ...

  a.off (' Mouseover '). ('Mouseover', function) (overletrigger (this);}); A.off ('click'). ('Click', function () {overlayTrigger (this, true);});   
 And then during the mouse click, I delete them:  
  $ (obj) .off ('mouseover'); $ (Obj) .off ('mouseout');   
 But I want to click the next mouse, if these handles are closed, then I want to enable them again ... but I do not know how to 'mouseover' Close or not ...  
 Digging through Google is slightly different, because the keywords "on" and "off" and "mouseover" are not the method to find what I want ... & gt; ;; & Lt;  
 Any help / hints will be appreciated :)   
 
 
 Using the data, you can get a list of events related to the object.  
  If you are using jQuery 1.8 or above you will need to use the following:   
  
 < Code> $ ._data (Elem, 'events');   
  elem  should be a HTMLElement,  not  a jQuery object or selector. If you have a jQuery object then you  elem  with  elem.get (0) .  
  Can use jQuery version 1.8 below   
  $ (elem) .data ('event');   
 This will return an item with events, then you can see whether they are undefined or not.  
 Note: Keep in mind that if there is no event handler on the element, then the data will return  undefined