struts页面用javascript来实现使按钮的变灰
<html:form action="12.do" method="post">
<html:button property="bb" οnclick="test();">退出</html:button>
</html:form>
<script language="javascript" type="text/javascript">
function test()
{
document.forms[0].bb.disabled = true ;
}
</script>
按下这个按钮,他自己就变成灰色且不可点的了