javascript : ISO Latin-1 <-> ASCII 변환하기

http://www.mungchung.com/mianamssi/articles/S011-trans_code.htm

<script language="javascript">
function funESC(p_str){
d0cument.frm.str_1.value = escape(p_str);
}

function funUnESC(p_str){
d0cument.frm.str_1.value = unescape(p_str);
}
</script>

<form name="frm">
변경전 : <input type="text" name="str" size="50"><br>
변경후 : <input type="text" name="str_1" size="50">
<br><br>
<input type="button" value="escape" onClick="funESC(frm.str.value)">
<input type="button" value="unescape" onClick="funUnESC(frm.str.value)">
</form>