function checkbox() {
if (document.getElementById("news").checked == true){
document.getElementById("fakecheckbox").style.backgroundPosition="30px 0px";
document.getElementById("news").checked = false;
}
else{
document.getElementById("news").checked = true;
document.getElementById("fakecheckbox").style.backgroundPosition="0px 0px";}

} 

function checkboxcheck() {
if (document.getElementById("fakecheckbox")!==null) {

  if (document.getElementById("news").checked == true){
  document.getElementById("fakecheckbox").style.backgroundPosition="0px 0px";
  }
    else if (document.getElementById("news").checked != true){
    document.getElementById("fakecheckbox").style.backgroundPosition="30px 0px";
    }
}
}