<script language="javascript"> 
function submitForm(obj){ 
obj.disabled=true; document.form1.submit(); 
} </script> <BODY> <form name="form1" method="post" action="#"> name:<input name="n" id="n" size="20px"/><br/> <input type="button" name="tj" value="提交" onClick="submitForm(this)"> </form> </BODY>