problem with wmlscript(i think)

Hi,

I am very new to wap programming and i am reading through Beginning WAP, WML & WMLScript by Wrox. One of the exercises is to implement a simple calculator function which adds together 2 integers keyed in by the user. The code below i know is right, because its supplied in the book. When te appliation is executed, it allows the user to type in 2 integers but when i press the calculate option i get an error. What i cant seen to do is get the WMLScript to work. I have added the following MIME types to IIS default web server:

text/vnd.wap.wml
application/vnd.wap.wmlc
text/vnd.wap.wmlscript
application/vnd.wap.wmlscriptc

I thought by adding the above MIME types would solve my problem but it didn't. The two emulators i am using are Openwave SDK 6.2.2 and M3Gate. I really do not know whats wrong with it. Here is the code.

calc.wml
<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.2//EN"
"http://www.wapforum.org/DTD/wml_1.2.xml">

<wml>
<card id="add" title="Add 2 Numbers">
<p>This is a simple calculator.</p>
<p>
Please enter the first number<br/>
X = <input name="var1" title="1st number" format="*N" /><br/>
Please enter the second number<br/>
Y = <input name="var2" title="2nd number" format="*N" /><br/>
<a href="calc.wmls#add($(var1), $(var2))">Calculator</a>
</p>
<do type="accept">
<go href="calc.wmls#add($(var1), $(var2))"/>
</do>
</card>

<card id="answer" title="Result">
<p>X + Y = $(S)<br/></p>
</card>
</wml>

and here is the code for calc.wmls
extern function add(a, b)
{
WMLBrowser.setVar("S", a + b);
WMLBrowser.go("#answer");

}

I would very much appreciate any help. I cant really go through the rest of the book until i solve this problem.

Thankyou

solanki18

The code worked correctly on my computer.