注册延时

<form name="agree" method="post" action="">
    <center>
        <input type="submit" name="agreeb" value="同 意" style="height: 23px">
        <input type="button" name="return" value="不同意" style="height: 23px" onclick="javascript:history.go(-1);">
    </center>
</form>
<script type="text/javascript">
<!--
var secs = 8;
document.agree.agreeb.disabled = true;
for (i = 1; i <= secs; i++) {
    window.setTimeout("update(" + i + ")", i * 1000);
}

function update(num) {
    if (num == secs) {
        document.agree.agreeb.value = " 我 同 意 ";
        document.agree.agreeb.disabled = false;
    } else {
        printnr = secs - num;
        document.agree.agreeb.value = "请认真查看<条款和声明> (" + printnr + " 秒后继续)";
    }
}
//-->
</script>

<form name="bbrules">
    <input type="submit" name="rulesubmit" value="同 意" style="height: 23px">
    <input type="button" name="return" value="不同意" style="height: 23px" onclick="javascript:history.go(-1);">
    </center>
</form>
<script language="JavaScript">
var secs = 9;
var wait = secs * 1000;
document.bbrules.rulesubmit.value = "同 意(" + secs + ")";
document.bbrules.rulesubmit.disabled = true;
for (i = 1; i <= secs; i++) {
    window.setTimeout("update(" + i + ")", i * 1000);
}
window.setTimeout("timer()", wait);

function update(num, value) {
    if (num == (wait / 1000)) {
        document.bbrules.rulesubmit.value = "同 意";
    } else {
        printnr = (wait / 1000) - num;
        document.bbrules.rulesubmit.value = "同 意(" + printnr + ")";
    }
}

function timer() {
    document.bbrules.rulesubmit.disabled = false;
    document.bbrules.rulesubmit.value = "同 意";
}
</script>