<html>
<head>
</head>
<script>
window.onload=function(){
a1.onclick=a();
}
function a(){
i=0;
ttt="";
aa=["가","나","다","라","마","바","사","아","자","차"]
aaa=window.setInterval("b()" , 500);
}
function b(){
if(i<aa.length){
ttt+=aa[i++];
b2.innerHTML=ttt;
}
if(i==aa.length){
window.clearInterval(aaa);
dd=window.setInterval("c()",500);
}
}
function c(){
bb=ttt.substring(0,i);
i--;
b2.innerHTML=bb;
if(i==0){
window.clearInterval(dd);
a()
}
}
</script>
</head>
<body>
<input type =button id="a1" value="글자가 한개씩 나올꺼에요 아마도...">
<div id=b2></div>
</body>
</html>