#include <stdio.h>
#include <stdlib.h>
#include <string.h>

/* minimum required number of parameters */
#define MIN_REQUIRED 2

/* display usage */
int help() {
   printf("Usage: myprogram [-s <arg0>] [-n <arg1>] [-true]\n");
   printf("\t-s: a string a\n");
   printf("\t-n: a number\n");
   printf("\t-true: a single parameter\n");

   return 1;
}

/* main */
int main(int argc, char *argv[]) {
   if (argc < MIN_REQUIRED) {
      return help();
   }
   int i;

   /* iterate over all arguments */
   for (i = 1; i < (argc - 1); i++) {
       if (strcmp("-s", argv[i]) == 0) {
          /* do something with it */ 
          printf("string = %s\n", argv[++i]);
          continue;
       }
       if (strcmp("-n", argv[i]) == 0) {
          /* do something with it. for example, convert it to an integer */
          printf("number = %i\n", atoi(argv[++i]));
          continue;
       }
       if (strcmp("-true", argv[i]) == 0) {
          printf("true activated\n");
          continue;
       }
       return help();
   }
   return 0;
}

function esEmailValido($email)
{
    if (ereg("^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@([_a-zA-Z0-9-]+\.)*[a-zA-Z0-9-]{2,200}\.[a-zA-Z]{2,6}$", $email ) )
	{
       return true;
    }
	else
	{
       return false;
    }
}

 <script type="text/javascript">
        function check_email(email_id,err_id){
            emailRegExp = /^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\.([a-z]){2,4})$/;
            var err_mail='Email addres incorect!';
            if(emailRegExp.test(document.getElementById(email_id).value)){
                alert('true');
                return true;
            }else{
                document.getElementById(err_id).innerHTML=err_mail;
                alert(err_mail);
                return false;
            }
        }
    </script>

        <span id="err_msg" style="color: red;"></span>
    <form id="myForm" name="myForm" action="./register.php" method="post" onsubmit="return check_email('email','err_msg');">
        <input type="text" name="email" id="email"/>
        <input  type="submit" name="send" value="Send" />
    </form>

$page = isset($_GET['page']) ? $_GET['page'] : 'home';

//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com/geral/is-date [v1.0]

isDate = function(y, m, d){ //v1.0
        if(typeof y == "string" && m instanceof RegExp && d){
            if(!m.test(y)) return 1;
            y = RegExp["$" + d.y], m = RegExp["$" + d.m], d = RegExp["$" + d.d];
        }
        d = Math.abs(d) || 0, m = Math.abs(m) || 0, y = Math.abs(y) || 0;
        return arguments.length != 3 ? 1 : d < 1 || d > 31 ? 2 : m < 1 || m > 12 ? 3 : /4|6|9|11/.test(m) && d == 31 ? 4
        : m == 2 && (d > ((y = !(y % 4) && (y % 1e2) || !(y % 4e2)) ? 29 : 28)) ? 5 + !!y : 0;
};

<script type="text/javascript">

getDateMsg = function(x){
    return x == 0 ? "Valid Date"
    : x == 1 ? "Invalid date format"
    : x == 2 ? "Invalid day"
    : x == 3 ? "Invalid month"
    : x == 4 ? "In April, June, September and November there's no 31 day"
    : x == 5 ? "February has only 28 days"
    : x == 6 ? "In leap years, February has 29 days": "nothing =]";
};

var x = [
    isDate("22/07/1984", /^([0-9]{1,2})[\/]([0-9]{1,2})[\/]([0-9]{1,4})$/, {d: 1, m: 2, y: 3}),
    isDate("1984-07-22", /^([0-9]{4})-([0-9]{2})-([0-9]{2})$/, {d: 3, m: 2, y: 1}),
    isDate("07-22-1984", /^([0-9]{4})-([0-9]{2})-([0-9]{2})$/, {d: 3, m: 2, y: 1}),
    isDate(2000, 1, 32),
    isDate(2000, 0, 1),
    isDate(2000, 4, 31),
    isDate(2001, 2, 29),
    isDate(2004, 2, 30)
];

for(var i = -1, l = x.length; ++i < l; document.write(getDateMsg(x[i]), "<br />"));

</script>

isDate(y: Integer, m: Integer, d: Integer): Integer
    Checks a date and returns 0 if it's valid or one of the error codes bellow.
    y year
    m month
    d day

	
isDate(date: String, matcher: RegExp, map: Object): Integer
    Checks a date and returns 0 if it's valid or one of the error codes bellow.
    date date in a string form
    matcher regular expression responsible to find and store the day, month and year
    			
    map object containing the position where each date component is localized inside the regular expression. Its format is the following: {d: positionOfTheDay, m: positionOfTheMonth, y: positionOfTheYear}								
Return codes
    * 0 = Valid date
    * 1 = Date format invalid (regular expression failed or amount of arguments != 3)
    * 2 = Day isn't between 1 and 31
    * 3 = Month isn't between 1 and 12
    * 4 = On April, June, September and November there isn't the day 31
    * 5 = On February the month has only 28 days
    * 6 = Leap year, February has only 29 days

find ./ -type f -name \*.php -exec php -l {} \;

# nnnn is the id to be checked
http://www.dopa.go.th/cgi-bin/inqelect.sh?pid=nnnn

import urllib, re
def getname(id):
  url = 'http://www.dopa.go.th/cgi-bin/inqelect.sh?pid=' + str(id)
  src = urllib.urlopen(url).read()
  pat = '<H3> *(.*?) *<'
  name = re.findall(pat, src)[0]  # don't use other info
  return name

print getname(5100900050063)  # show a name (one of my relatives)