[jQuery] named function vs anonymous functions

[Shelane]

I currently have:
$(this).change(function(){
        //my function code here
});//end change fn

I decided to move the function outside this block since I might want
to use it at another time besides a change event so my function is now

myfunction = function(){
   //my function code here
}

so what is the proper syntax for calling this named function for that
change event?