function pinkMoon(){
var
moon=document.getElementById("mymoon");
if
(moon.src.match("http://www.j100coders.org/coder/images/album/j100coders17_00009_20140510_1399730097.the moon.jpg")){
moon.src="http://www.j100coders.org/coder/images/album/j100coders17_00009_20140510_1399730097.the moon.jpg";
}else{
moon.src="http://www.j100coders.org/coder/images/album/j100coders17_00009_20140510_1399730065.the sun.jpg";
}
}