<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title></title>
<script type="text/javascript">
var count = 10;
var tmrid= setInterval("setvalue()", 1000);
event.cancelBubble=true
function setvalue()
{
var btn = document.getElementById("btn");
if (count > 0) {
btn.value = "等待" + count + "秒";
count--;
btn.disabled = true;
}
else {
btn.value = "同意"
clearInterval("tmrid");
btn.disabled = false;
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<input id="btn" type="button" value="同意" />
</div>
</form>
</body>
</html>