> Hello, 
> I make a HTML document,it has two buttons,it likes:
>    ......
>      <input type="Submit" name="okbutton"     value="      OK      " >
>      <input type="Submit" name="cancelbutton" value="    Cancel    "> 
>    ......

> My servlet is follows:
>   String action=request.getParameter("Submit");
>   ...
>   System.out.println("You pressed "+action+" button");
>  ...

> When I run it,and I press OK button,but I got:
>  You pressed null button

> Why?

The javadoc (http://jakarta.apache.org/tomcat/tomcat-4.0-
doc/servletapi/index.html) for getParamter() says:

Parameters:
name - a String containing the name of the parameter whose value is 
requested

When your code calls getParameter(), what is it that you are passing? 
(Hint: you are not passing the name.) 

> I have another two questions:
> 1)How to close IE?

Usually you don't want to close a browser for a user. If you really think 
you need to, there are various Javascript or VBscript method calls you can 
make. For Javascript there is window.close, self.close(), top.close() 
among others. I do not know the VBscript commands, but would guess close() 
called on the appropriate object would probably do it.

> 2)I want to show Input ID with red color,How to modify the statement?
>   <Input ID input type="Text" name="ID" align="left" size=15> 

Font color is usually set with a <font> tag. The <font> tag surrounds the 
object whose color you want to change.

Kevin Mukhar
http://home.earthlink.net/~kmukhar
Co-Author Beginning Java Databases