i want to know what is the problem in this code

Sun Nov 25 23:48:11 EST 2007

i am getting the following error for below code

<type 'exceptions.KeyError'>	Python 2.5.1: C:\Python25\python.exe
Mon Nov 26 10:13:17 2007

A problem occurred in a Python script. Here is the sequence of
function calls leading up to the error, in the order they occurred.
 C:\Program Files\Apache Group\Apache2\cgi-bin\hello.py in ()
    7
    8 val = cgi.FieldStorage()
    9 name = val["name"].value
   10 time_from = val["time_from"].value
   11 time_to = val["time_to"].value
name undefined, val = FieldStorage(None, None, []), ].value = []
 C:\Python25\lib\cgi.py in __getitem__(self=FieldStorage(None, None,
[]), key='name')
  565             if item.name == key: found.append(item)
  566         if not found:
  567             raise KeyError, key
  568         if len(found) == 1:
  569             return found[0]
builtin KeyError = <type 'exceptions.KeyError'>, key = 'name'

<type 'exceptions.KeyError'>: 'name'


#!C:/Python25/python.exe
import cgi
import cgitb; cgitb.enable()

print "Content-Type: text/html"
print

val = cgi.FieldStorage()
name = val["name"].value
time_from = val["time_from"].value
time_to = val["time_to"].value
html = """
<html>

    <body>
        <h1> Hello %s  from %s to %s </h1>
    </body>

</html>
"""
print html%(name, time_from, time_to)


html page is.......................................


<html>


<body>

    <form action="C:/Program Files/Apache Group/Apache2/cgi-bin/
hello.py">
        <table>
            <tr>
                <td> Enter your name: </td>
                <td> <input type="text" name="name" value="" /> </td>
            </tr>
             <tr>
                <td> Time from: </td>
                <td> <input type="text" name="time_from" value="" /> </
td>
            </tr>
              <tr>
                <td> Time to: </td>
                <td> <input type="text" name="time_to" value="" /> </
td>
            </tr>
            <tr >
                <td colspan="2" align="center">  <input type="submit"
value="Click Here" /> </td>
            </tr>
        </table>

    </form>

</body>

</html>