Automatically calculate age from HTML date field

Discussion created by jothimani on Mar 10, 2014
hello friends i want to make employee registration form by using HTML & CSS as User Interface, Python as Script and PostgreSQL as database,

here i want to know, how to calculate age from Date Field in HTML User interface,

herewith my Python Program,

# Import modules for CGI handling 
import cgi, cgitb 
from datetime import datetime
import datetime
import psycopg2

# Create instance of FieldStorage 
form = cgi.FieldStorage() 

# Get data from fields
empname = form.getvalue('empname')     //getting employee name from html text field

if form.getvalue('gender'):
 gender=form.getvalue('gender')     //getting gender from html radio button
 gender="Not set"

dob  = form.getvalue('dob')                  //getting date of birth from html date field

                                                    //here i want to calculate and store age into database here

address = form.getvalue('address')
pincode  = form.getvalue('pincode')
mobile = form.getvalue('mobile')
doj = form.getvalue('doj')                 // dote of joining
db = psycopg2.connect(database="employee", user="postgres", password="jeba", host="localhost", port="5432")
cursor = db.cursor()
cursor.execute("INSERT INTO emp_details(empname, gender, dob, age, address, pincode, mobile, doj) \
VALUES('"+empname+"', '"+gender+"', '"+dob+"', "+age+", '"+address+"', "+pincode+", "+mobile+", '"+doj+"')");

print "Content-type:text/html\r\n\r\n"
print "<html>"
print "<head>"
print "<title>Employee Details</title>"
print "</head>"
print "<body>"
print "<h1>Success</h1>"
print "<h1>age is "+age+"</h1>"
print "</body>"
print "</html>"