Gshow=new Array(0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0);
function updateList(){
 var a=updateList.arguments[0];
 if(document.getElementsByTagName("input")[a].checked){var y=1;}
 else{var y=-1}
 var x=1;
 while(x<updateList.arguments.length){
  var b=updateList.arguments[x];
  Gshow[b]=Gshow[b]+y;
  x++;
 }
 benefits=document.getElementsByTagName('li');
 for(var x=0; x<benefits.length; x++){
  if(Gshow[x]>0){benefits[x].style.display="list-item";}
  else{benefits[x].style.display="none";}
 }
}