<body bgcolor="green">
<h1>여기는 index3.html입니다</h1>
<form name="myForm">
<input type="text" size="30" name="myFormMsg">
</form>
<script type="text/javascript">
myMsg = "환영합니다 어서 오십시오";
myCnt = 0;
function myfunc() {
document.myForm.myFormMsg.value = myMsg.substring(0, myCnt) + "_";
myCnt = ( myCnt == myMsg.length )? 0 : myCnt+1;
}
setInterval("myfunc()", 500);
</script>
</body>