onclick="
javascript:{this.
disabled=true;document.form1.submit();}"，
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>
表单提交后按钮变成灰色 - www.plcxue.com</title>
</head>
<body>
<form name=form1 method="POST" action="/" target=_blank>
<p><input type="text" name="T1" size="20"><input type="button" value="提交" onclick="javascript:{this.disabled=true;document.form1.submit();}">
<input type="reset" value="重置" name="B2"></p>
</form>
</body>
</html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html;charset=gb2312">
</head>
<body>
<a href="http://www.osxue.com/">系统学堂</a><hr>
<script language="javascript">
function submitonce(jb51_net){
if(document.all||document.getElementById){
for(i=0;i<jb51_net.length;i++){
var tempobj=jb51_net.elements[i];
if(tempobj.type.toLowerCase()=="submit"||tempobj.type.toLowerCase()=="reset")
tempobj.disabled=true;
}
}
}
</script>
<form action="http://www.osxue.com" method="post" name="jb51_net" onSubmit="submitonce(this)">
<input type="text" name="name">
<input type="submit" name="submit1" value="提交">
</form>
</body>
</html>
