function c(astring) {
  a=1;apage=astring;
  if (astring>'') {
   s=new Array();
   for (i=0;i<astring.length;++i) {s[i]=astring.charAt(i).toUpperCase();}
   s.sort();
   a=0;for (i=0;i<2;++i) {a+=s[s.length-(i+1)].charCodeAt(0)-s[i].charCodeAt(0);}
   a=((((a%2)+(a%13)+(a%7)-(a%5)-(astring.length)+s[3].charCodeAt(0))%5-apage.charCodeAt(0)+apage.charCodeAt(3))%(s[1].charCodeAt(0)-s[0].charCodeAt(0)));
//alert(a);
  }
  return a;
}
function go2() {document.location=apage.toLowerCase()+".html";}
function check() {
  if (!c(prompt("What color is John's shirt in Chapter 3?",''))) {
    go2();
  } else {
    alert('Nope!');
  }
}