<form method=post action="test.html">
<input TYPE="text" size=10 name="read" value=read>
<INPUT TYPE="submit" NAME="Submit" VALUE="递交"
onclick="return(confirm('要提交吗'))">
</form>
<input TYPE="text" size=10 name="read" value=read>
<INPUT TYPE="submit" NAME="Submit" VALUE="递交"
onclick="return(confirm('要提交吗'))">
</form>
<form method=post action="test.html" onsubmit="return(confirm('要提交吗'))">
<input TYPE="text" size=10 name="read" value=read>
<INPUT TYPE="submit" NAME="Submit" VALUE="递交" >
</form>