I'm trying to change the CSS of my website by the user clicking a div and when they do the website's background will turn into a gif, but I don't know how to do that on JavaScript!

here's my code

```
 function easterFun(){
     var changeBG = document.getElementById("body");
     changeEaster.setAttribute("style","background-image:url(eatser.gif)")

```

also my div wont do anything when it is clicked. it wont execute this code can someone tell me the problem pls??

 Welcome to the Holiday Spirit website!!!

```
<div  id="easter"onclick="easterFun" style = "cursor: pointer"()>Easter!</div>
<div id = "xmas" onclick ="xmasFun()">Christmas</div>

</body>
</html>

```