<div style="text-align:center;line-height:36px;">
<input name="agree" disabled="disabled" type="submit" id="agree" value="我同意" class="sbutton" />
<script type="text/javascript">
var secs = 5;
var wait = secs * 1000;
document.getElementById("agree").value = "同 意(" + secs + ")";
document.getElementById("agree").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.getElementById("agree").value = "同 意";
} else {
printnr = (wait / 1000) - num;
document.getElementById("agree").value = "同 意(" + printnr + ")";
}
}
function timer() {
document.getElementById("agree").disabled = false;
document.getElementById("agree").value = "同 意";
}
</script>
</div>