js禁用button，js 将某个按钮禁用5秒钟

<FORM action=reg.asp?action=apply method=post><INPUT type=submit value="请认真查看<服务条款和声明>(10 秒后继续)" ></Form><SCRIPT language=javascript>   var secs = 10;   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 ="同意并注册";       document.agree.agreeb.disabled=false;   }   else {       printnr = secs-num;       document.agree.agreeb.value = "请认真查看<服务条款和声明> (" + printnr +" 秒后继续)";   }}</SCRIPT>

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###注意：使用js如何禁用button按钮：

? <input type="button" id="test" value="测试按钮" onclick="testButton()"/>

<script type="text/javascript">

?function testButton()

?{??????

?????? var aaa = document.getElementById('test');

???????aaa.disabled=true; //使用true或false，控制是否让按钮禁用

? }?

</script>

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