var nCho= [1,1,1,1,1, 1,1,1,1,1, 1,1,1,1,1, 1,1,1,1];
var nJung=[1,1,1,1,1, 1,1,1,1,2, 2,2,1,1,2, 2,2,1,1,2, 1];
var nJong=[0,1,1,2,1, 2,2,1,1,2, 2,2,2,2,2, 2,1,1,2,1, 1,1,1,1,1, 1,1,1];

var lvs=[
["a","aaaaaaaaaaaa"],
["b","bbbbbbbbbbbb"],
["c","cccccccccccc"],
["abc","abcabcabcabcabcabcabcabc"],
["d","dddddddddddd"],
["e","eeeeeeeeeeee"],
["f","fffffffffffff"],
["def","defdefdefdefdefdefdefdef"],
["abcdef","abcdefabcdefabcdefabcdef"],
["g","gggggggggggg"],
["h","hhhhhhhhhhhh"],
["i","iiiiiiiiiiii"],
["ghi","ghighighighighighighighi"],
["defghi","defghidefghidefghidefghi"],
["j","jjjjjjjjjjjj"],
["k","kkkkkkkkkkkk"],
["l","llllllllllll"],
["jkl","jkljkljkljkljkljkljkljkl"],
["ghijkl","ghijklghijklghijklghijkl"],
["m","mmmmmmmmmmmm"],
["n","nnnnnnnnnnnn"],
["o","oooooooooooo"],
["mno","mnomnomnomnomnomnomnomno"],
["jklmno","jklmnojklmnojklmnojklmno"],
["p","pppppppppppp"],
["q","qqqqqqqqqqqq"],
["r","rrrrrrrrrrrr"], 
["pqr","pqrpqrpqrpqrpqrpqrpqrpqr"],
["mnopqr","mnopqrmnopqrmnopqrmnopqr"],
["s","ssssssssssss"], 
["t","tttttttttttt"],
["u","uuuuuuuuuuuu"],
["stu","stustustustustustustustu"],
["pqrstu","pqrstupqrstupqrstupqrstu"],
["v","vvvvvvvvvvvv"],
["w","wwwwwwwwwwww"], 
["x","xxxxxxxxxxxx"],
["vwx","vwxvwxvwxvwxvwxvwxvwxvwx"],
["stuvwx","stuvwxstuvwxstuvwxstuvwx"],
["y","yyyyyyyyyyyy"],
["z","zzzzzzzzzzzz"],
["yz","yzyzyzyzyzyzyzyzyzyzyzyz"], 
["vwxyz","vwxyzvwxyzvwxyzvwxyzvwxyz"],
["abcdefghijklmn","abcdefghijklmnabcdefghijklmn"],
["opqrstuvwxyz","opqrstuvwxyzopqrstuvwxyz"],
["abcdefghijklmnopqrstuvwxyz","abcdefghijklmnopqrstuvwxyz"]
];

var dv=21*28;
var start=false, dt=0, avt=0, topt=0, avp=0, exn=0;
var testn=0, curlv=0, maxlv=lvs.length, passt=100, exrn=3, oItv="";

function gId(id) { return document.getElementById(id); }
function sId(id,s) { document.getElementById(id).innerHTML=s; }

function xHDiv(hg) {
 var hc,cho,jung,jong;
 hc=hg.charCodeAt(0)-0xAC00;//ubase1;
 if(hc<0) return 1;
 cho=Math.floor(hc/dv);
 hc=hc%dv;
 jung=Math.floor(hc/28);
 jong=hc%28;
 var tn=nCho[cho]+nJung[jung]+nJong[jong];
 return tn;
}
function xCalN(s) {
 var l=s.length;
 var i=0, tn=0, c;
 while(i<l) {
  if(s.charCodeAt(i)<200) tn++;
  else tn+=xHDiv(s.charAt(i));
  i++;
 }
 return tn;
}
var bck,ckn,ckx,cks;
function xCkStr() {
 var i,j,k,s,l;
 dt=((new Date).getTime()-dt);
 if(dt<1) dt=1;
 start=false;
 var fe=document.forms['f1'].elements;
 var s1=fe['t1'].value, s2=fe['t2'].value;
 fe['t2'].value="";
 var l1=s1.length, l2=s2.length;
 if(l2<l1-2) { alert("윗글의 내용을 끝까지 입력하세요!"); fe['t2'].focus(); fe['t2'].value=""; return; }
 l=(l1>l2)?l1:l2;
 var on=0;
 for(i=0;i<l;i++) {
   s=s1.charAt(i);
   ckn[s]+=1;
   if(s==s2.charAt(i)) on++; else ckx[s]+=1;
 }
 var t=Math.floor((xCalN(s2)*60000)/dt);
 var p=Math.floor((on*100)/l1);
 if(t>topt) topt=t;
 sId('t3',t);
 sId('t4',p);
 avt=((avt*exn)+t)/(exn+1);
 avp=((avp*exn)+p)/(exn+1);
 exn++;
 sId('t5',Math.floor(avt));
 sId('t6',Math.floor(avp));
 sId('t7',topt);
 
 testn++;
 gId('ct'+testn).style.backgroundColor='#FFFFFF';

 if(testn==exrn) {
   s="";
   var errs="";
   if(bck) {
     s="문자:정확도\n-------------\n";
     l=cks.length;
     for(i=0;i<l;i++) {
       j=cks[i];
       if(ckn[j]>0) {
         k=Math.floor((ckn[j]-ckx[j])*100/ckn[j]);
         if(errs=="") { if(k<70) errs=j; }
         s+=(j+" : "+k+" %\n");
       }
     }
   }
   if(s.length>0) s+="--------------\n";
   if(avt>=passt && avp>=80) { //통과..
     if(confirm(s+"축하합니다! 통과기준을 넘어섰습니다.\n다음단계를 연습하시겠습니까?")) xReset(1); else xReset(0);
   } else {
     var ok=false;
     if(bck && errs.length>0) ok=xReEx(s,errs);
     if(!ok) {
       alert(s+"통과기준 속도를 통과하지 못하였습니다.\n현재 단계를 계속 연습합니다");
       xReset(0);
     }
   }
 }
 fe['t2'].focus();
}
function xKeyDown() {
  if(start==false) { dt=(new Date).getTime(); start=true; }
  if(event.keyCode==13) {
    xCkStr();
    xStartItv();
  }
}
function xPaste() {
 window.clipboardData.setData("Text", "");
}

function xReset(n) {
  var fe=document.forms['f1'].elements,i;
  if(n==1) {
    curlv++;
    if(omember==0 && curlv>9) {
      curlv=9;
      alert("비회원은 10단계 이하까지만 진행가능합니다.");
    }
    if(curlv>=maxlv) {
       curlv=maxlv-1;
       alert("수고하셨습니다!\n최종단계까지 통과하셨습니다!");
    }
    xDrawLv();
  }

  for(i=1;i<=exrn;i++) gId('ct'+i).style.backgroundColor='#999999';
  testn=avt=avp=topt=exn=0;
  for(i=3;i<8;i++) sId('t'+i,'&nbsp;');
  fe['t2'].value="";
  fe['t1'].value=lvs[curlv][1];
  fe['t2'].focus();

  cks=new Array(); ckn=new Array(); ckx=new Array();
  var s=lvs[curlv][0],c;
  for(i=0;i<s.length;i++) {
    c=s.charAt(i);
    cks[i]=c; ckn[c]=0; ckx[c]=0;
  }
  if(cks.length>1) bck=true; else bck=false;
}
function xDrawLv() {
  var s="";
  for(var i=0;i<curlv+1;i++) s+=" ";
  document.getElementById("id_lv1").innerText=s+"↑현재단계["+(curlv+1)+"]";
  document.forms['f1'].elements['slv'].selectedIndex=curlv;
}
function xChLv() {
  curlv=document.forms['f1'].elements['slv'].selectedIndex;
  if(omember==0 && curlv>9) {
   curlv=9; alert("비회원은 10단계 이하만 선택가능합니다!");
   document.forms['f1'].elements['slv'].selectedIndex=9;
  }
  xReset(0); xDrawLv();
}
function xChPt() {
  passt=50+document.forms['f1'].elements['spt'].selectedIndex*50;
}
function xChExn() {
  exrn=document.forms['f1'].elements['sexn'].selectedIndex+2;
  var s="";
  for(var i=1;i<=6;i++) {
    gId('ct'+i).style.display=(i<=exrn)?'':'none';
  }
  xReset(0);
}
function xReEx(s,es) {
  var ls1="abcdefghijklmnopqrstuvwxyz";
  var ls2=[0,1,2,4,5,6,9,10,11,14,15,16,19,20,21,24,25,26,29,30,31,34,35,36,39,40];
  var n=ls1.length, ok=-1;
  for(var i=0;i<n;i++) {
    if(ls1.charAt(i)==es) { ok=i; break; }
  }
  if(ok>=0) {
    if(confirm(s+"통과기준을 넘지 못하였습니다!\n\n["+es+"]문자에 오타가 많습니다.\n해당문자의 연습단계로 이동하시겠습니까?")) {
      curlv=ok; xReset(0); xDrawLv(); return true;
    }
    xReset(0); return true;
  }
  return false;
}
function xStartItv() {
  if(oItv) clearInterval(oItv);
  if(start) return;
 oItv=setInterval("xItv()",1000);
}
function xItv() {
  if(start) { clearInterval(oItv); return; }
  if(document.forms['f1'].elements['t2'].value.length>0) {dt=(new Date).getTime(); start=true; clearInterval(oItv); }
}