清楚指定的input框中的值
$("input[name=' *** ']").val("").focus(); // 清空並獲得焦點
一鍵清空input框裏的所有內容
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
<script>
function delWholeInput(obj) {
evt = event || window.event;
if (evt.keyCode.toString() == "8" || evt.keyCode.toString() == "46" ){
if ($('#' + obj).css('text-decoration') != "none") {
document.getElementById(obj).value = "";
$('#' + obj).css('text-decoration', 'none');
}
}
}</script>
</head>
<body>
<input type="text" id="t1" style="text-decoration: underline;" οnkeydοwn="delWholeInput(this);"/>
</body>
</html>
