type="file" 의 value값 지우기 > script

꽁수임.. -_-;;

<script language="javascript">
function valueRemove() {
    frm.file_nm.select();
    document.execCommand('Delete');
}
</script>
<form name="frm">
<input type="file" name="file_nm"><br><br>
<input type="button" value="값지우기" onclick="valueRemove()">
</form>

// php 스쿨 돌아다니다가 더 좋은 방법 발견

<SCRIPT LANGUAGE="JavaScript">
function reset() {
    var file1 = document.getElementsByName("file[]");
    file1[0].select(); // file[] 배열 첫번째 선택
    document.selection.clear();
}
</SCRIPT>

<input type="file" name="file[]"> <input type=button value=리셋 onclick='reset()'>

참조 :
http://msdn.microsoft.com/library/default.asp?url=/workshop/author/dhtml/reference/methods/execcommand.asp