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can't call javascript validation function !!


alvinchua

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Everything wroks fine but is that when i try to insert null value it only uses the php validation and no alert box appear(i guess it not running the javascript validation)  .. This is the code :

 

 

<html>

<head>

<title>send New MySQL User</title>

<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">

<head>

<script language="JavaScript">

function checkForm()

{

var cfirstname, clastname, cage, cemail;

with(window.document.msgform)

{

cfirstname = firstname;

clastname = lastname;

cage = age;

cemail = email;

 

}

 

if(trim(cfirstname.value) == '')

{

alert('Please enter your name');

cfirstname.focus();

return false;

}

else if(trim(cemail.value) == '')

{

alert('Please enter your email');

cemail.focus();

return false;

}

else if(!isEmail(trim(cemail.value)))

{

alert('Email address is not valid');

cemail.focus();

return false;

}

else if(trim(cage.value) == '')

{

alert('Please enter your message');

cage.focus();

return false;

}

else

{

cname.value = trim(cname.value);

cemail.value = trim(cemail.value);

csubject.value = trim(csubject.value);

cmessage.value = trim(cmessage.value);

return true;

}

}

 

function trim(str)

{

return str.replace(/^\s+|\s+$/g,'');

}

function isEmail(str)

{

var regex = /^[-_.a-z0-9]+@(([-_a-z0-9]+\.)+(ad|ae|aero|af|ag|

ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|

bh|bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|

ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|

dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|

gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|

hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|

kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|

ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|

mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|no problem|nr|nt|nu|

nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pro|ps|pt|pw|py|qa|

re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|

su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|

ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|

zm|zw)|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i;

 

return regex.test(str);

}

</script>

</head>

 

<body>

<?php

 

$errmsg = ''; // error message

$firstname = ''; // sender's name

$lastname = ''; // sender's email sendres

$email = ''; // message subject

$age = ''; // the message itself

 

if(isset($_POST['send']))

{

$firstname = $_POST['firstname'];

$lastname = $_POST['lastname'];

$email = $_POST['email'];

$age = $_POST['age'];

 

if(trim($firstname) == '')

{

$errmsg = 'Please enter your name';

}

else if(trim($email) == '')

{

$errmsg = 'Please enter your email sendress';

}

else if(!isEmail($email))

{

$errmsg = 'Your email sendress is not valid';

}

else if(trim($lastname) == '')

{

$errmsg = 'Please enter message subject';

}

else if(trim($age) == '')

{

$errmsg = 'Please enter your message';

}

 

if($errmsg == '')

{

if(get_magic_quotes_gpc())

{

$firstname = stripslashes($firstname);

$lastname = stripslashes($lastname);

}

 

if(isset($_POST['send']))

{

$con = mysql_connect("localhost","root","");

if (!$con)

{

die('Could not connect: ' . mysql_error());

}

mysql_select_db("login", $con);

 

$firstname = $_POST['firstname'];

$lastname = $_POST['lastname'];

$age = $_POST['age'];

$email = $_POST['email'];

 

$query = "INSERT INTO person (firstname,lastname, age, email) VALUES ('$firstname', '$lastname', '$age','$email')";

 

mysql_query($query) or die('Error, insert query failed');

 

$query = "FLUSH PRIVILEGES";

mysql_query($query) or die('Error, insert query failed');

mysql_close($con);

 

echo "New MySQL user addded";

}

}

}

 

if(!isset($_POST['send']) || $errmsg != '')

{

?>

<form method="post" name = "msgform" id = "msgform">

<table width="400" border="0" cellspacing="1" cellpsending="2">

<tr>

<td width="100">Firstname</td>

<td><input name="firstname" type="text" id="firstname"></td>

</tr>

<tr>

<td width="100">Lastname</td>

<td><input name="lastname" type="text" id="lastname"></td>

</tr>

<tr>

<td width="100">Age</td>

<td><input name="age" type="text" id="age" ></td>

</tr>

<tr>

<td width="100">Email</td>

<td><input name="email" type="text" id="email"></td>

</tr>

<td width="100"> </td>

<td> </td>

</tr>

<tr>

<td width="100"> </td>

 

<td><input name="send" type="submit" id="send" value="send Message" onClick = "return checkForm();"></td>

</tr>

</table>

</form>

<?php

}

 

function isEmail($email)

{

return(preg_match("/^[-_.[:alnum:]]+@((([[:alnum:]]|[[:alnum:]][[:alnum:]-]*[[:alnum:]])\.)+(ad|ae|aero|af|ag|ai|al|am|an|ao|aq|ar|arpa|as|at|au|aw|az|ba|bb|bd|be|bf|bg|bh|bi|biz|bj|bm|bn|bo|br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|com|coop|cr|cs|cu|cv|cx|cy|cz|de|dj|dk|dm|do|dz|ec|edu|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gh|gi|gl|gm|gn|gov|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|in|info|int|io|iq|ir|is|it|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|mg|mh|mil|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|museum|mv|mw|mx|my|mz|na|name|nc|ne|net|nf|ng|ni|nl|no|no problem|nr|nt|nu|nz|om|org|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|pro|ps|pt|pw|py|qa|re|ro|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|yu|za|zm|zw)$|(([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5])\.){3}([0-9][0-9]?|[0-1][0-9][0-9]|[2][0-4][0-9]|[2][5][0-5]))$/i"

,$email));

}

?>

</body>

</html>

 

???

 

it runs the php validation but not the javascript ?? i did anything wrong in here?? can some1 help me out ?.. this is a code to enter 4 value into the database with the validation the isemail() function is to validation proper email address..

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https://forums.phpfreaks.com/topic/47102-cant-call-javascript-validation-function/
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<form method="post" name = "msgform" id = "msgform" onsubmit="return checkForm();">
<table width="400" border="0" cellspacing="1" cellpsending="2">
<tr>
<td width="100">Firstname</td>
<td><input name="firstname" type="text" id="firstname"></td>
</tr>
<tr>
<td width="100">Lastname</td>
<td><input name="lastname" type="text" id="lastname"></td>
</tr>
<tr>
<td width="100">Age</td>
<td><input name="age" type="text" id="age" ></td>
</tr>
<tr>
<td width="100">Email</td>
<td><input name="email" type="text" id="email"></td>
</tr>
<td width="100"> </td>
<td> </td>
</tr>
<tr>
<td width="100"> </td>

<td><input name="send" type="submit" id="send" value="send Message"></td>
</tr>
</table>

 

Should work.

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