javascript - jQuery - How to print class name -

This is my example of my situation, I have a menu that uses the same class and class name printed Wants to

  & lt; A href = "#" class = "top" onClick = "test ()" & gt; Home & lt; / A & gt; & Lt; A href = "#" class = "top" onClick = "test ()" & gt; Profile & lt; / A & gt; & Lt; A href = "#" class = "top" onClick = "test ()" & gt; Background & lt; / A & gt;  

Here I have tried to create a function but can not work
The expected result will show "top selected"

  function testing () {Var getclass = $ (this) .find ('top'); If (getClass == 'top') {Warning (getClass + 'selected'); }}  

Something like this:

  Lt; A href = "#" class = "up" onClick = "test (this)" & gt; Home & lt; / A & gt;  

and then ...

  function testing (L) {var className = $ (el) .attr ('class'); Console.log (className); }