please help me get past this signup.php page ?

<script type='text/javascript'>
 
function formValidator(){
    // Make quick references to our fields
    var firstname = document.getElementById('firstname');
    var addr = document.getElementById('addr');
    var zip = document.getElementById('zip');
    var state = document.getElementById('state');
    var username = document.getElementById('username');
    var email = document.getElementById('email');
 
    // Check each input in the order that it appears in the form!
    if(isAlphabet(firstname, "Please enter only letters for your name")){
        if(isAlphanumeric(addr, "Numbers and Letters Only for Address")){
            if(isNumeric(zip, "Please enter a valid zip code")){
                if(madeSelection(state, "Please Choose a State")){
                    if(lengthRestriction(username, 6, 8)){
                        if(emailValidator(email, "Please enter a valid email address")){
                            return true;
                        }
                    }
                }
            }
        }
    }
 
 
    return false;
 
}
 
function notEmpty(elem, helperMsg){
    if(elem.value.length == 0){
        alert(helperMsg);
        elem.focus(); // set the focus to this input
        return false;
    }
    return true;
}
 
function isNumeric(elem, helperMsg){
    var numericExpression = /^[0-9]+$/;
    if(elem.value.match(numericExpression)){
        return true;
    }else{
        alert(helperMsg);
        elem.focus();
        return false;
    }
}
 
function isAlphabet(elem, helperMsg){
    var alphaExp = /^[a-zA-Z]+$/;
    if(elem.value.match(alphaExp)){
        return true;
    }else{
        alert(helperMsg);
        elem.focus();
        return false;
    }
}
 
function isAlphanumeric(elem, helperMsg){
    var alphaExp = /^[0-9a-zA-Z]+$/;
    if(elem.value.match(alphaExp)){
        return true;
    }else{
        alert(helperMsg);
        elem.focus();
        return false;
    }
}
 
function lengthRestriction(elem, min, max){
    var uInput = elem.value;
    if(uInput.length >= min && uInput.length <= max){
        return true;
    }else{
        alert("Please enter between " +min+ " and " +max+ " characters");
        elem.focus();
        return false;
    }
}
 
function madeSelection(elem, helperMsg){
    if(elem.value == "Please Choose"){
        alert(helperMsg);
        elem.focus();
        return false;
    }else{
        return true;
    }
}
 
function emailValidator(elem, helperMsg){
    var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
    if(elem.value.match(emailExp)){
        return true;
    }else{
        alert(helperMsg);
        elem.focus();
        return false;
    }
}
</script>

Code (markup):

 

A description of the problem, things you have tried, expected outcome, actual outcome would help!

 

I see a lot of images, but you haven't actually asked a question. What do you need help with? Post actual code examples not just images as we all don't want to have to write everything from scratch.

 

i think i can improve this a better ....

<script type='text/javascript'>
function formValidator(){
    // Make quick references to our fields
    var firstname = document.getElementById('firstname');
    var addr = document.getElementById('addr');
    var zip = document.getElementById('zip');
    var state = document.getElementById('state');
    var username = document.getElementById('username');
    var email = document.getElementById('email');
    // Check each input in the order that it appears in the form!
    if(isAlphabet(firstname, "Please enter only letters for your name")){
        if(isAlphanumeric(addr, "Numbers and Letters Only for Address")){
            if(isNumeric(zip, "Please enter a valid zip code")){
                if(madeSelection(state, "Please Choose a State")){
                    if(lengthRestriction(username, 6, 8)){
                        if(emailValidator(email, "Please enter a valid email address")){
                            return true;
                        }
                    }
                }
            }
        }
    }
    return false;
}
function notEmpty(elem, helperMsg){
    if(elem.value.length == 0){
        alert(helperMsg);
        elem.focus(); // set the focus to this input
        return false;
    }
    return true;
}
function isNumeric(elem, helperMsg){
    var numericExpression = /^[0-9]+$/;
    if(elem.value.match(numericExpression)){
        return true;
    }else{
        alert(helperMsg);
        elem.focus();
        return false;
    }
}
function isAlphabet(elem, helperMsg){
    var alphaExp = /^[a-zA-Z]+$/;
    if(elem.value.match(alphaExp)){
        return true;
    }else{
        alert(helperMsg);
        elem.focus();
        return false;
    }
}
function isAlphanumeric(elem, helperMsg){
    var alphaExp = /^[0-9a-zA-Z]+$/;
    if(elem.value.match(alphaExp)){
        return true;
    }else{
        alert(helperMsg);
        elem.focus();
        return false;
    }
}
function lengthRestriction(elem, min, max){
    var uInput = elem.value;
    if(uInput.length >= min && uInput.length <= max){
        return true;
    }else{
        alert("Please enter between " +min+ " and " +max+ " characters");
        elem.focus();
        return false;
    }
}
function madeSelection(elem, helperMsg){
    if(elem.value == "Please Choose"){
        alert(helperMsg);
        elem.focus();
        return false;
    }else{
        return true;
    }
}
function emailValidator(elem, helperMsg){
    var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
    if(elem.value.match(emailExp)){
        return true;
    }else{
        alert(helperMsg);
        elem.focus();
        return false;
    }
}
</script>

Code (markup):

 

no it doesn't improve

 

this is a signup.php page that does a lot of things... my arrangement of code does not feel appropriate

it has parts of a html form ...

javascript ...

php ....


in that order ....

i have a lot of things to do before i can make it work ....

it is supposed to do form feild validation with javascript ... and it checks the mysql table for duplicate users with php code ......


first of all i have to decide on the form ...




then the way the code should be arranged....

i like the form feild validation to work first ...

<html>
    <head>



    <form onsubmit='return formValidator()' >
    First Name: <input type='text' id='firstname' /><br />
    Address: <input type='text' id='addr' /><br />
    Zip Code: <input type='text' id='zip' /><br />
    State: <select id='state'>
            <option>Please Choose</option>
            <option>AL</option>
            <option>CA</option>
            <option>TX</option>
            <option>WI</option>
    </select><br />
    Username(6-8 characters): <input type='text' id='username' /><br />
    Email: <input type='text' id='email' /><br />
    <input type='submit' value='Check Form' /><br />
    </form>






    <script type='text/javascript'>

    function formValidator(){
        // Make quick references to our fields
        var firstname = document.getElementById('firstname');
        var addr = document.getElementById('addr');
        var zip = document.getElementById('zip');
        var state = document.getElementById('state');
        var username = document.getElementById('username');
        var email = document.getElementById('email');

        // Check each input in the order that it appears in the form!
        if(isAlphabet(firstname, "Please enter only letters for your name")){
            if(isAlphanumeric(addr, "Numbers and Letters Only for Address")){
                if(isNumeric(zip, "Please enter a valid zip code")){
                    if(madeSelection(state, "Please Choose a State")){
                        if(lengthRestriction(username, 6, 8)){
                            if(emailValidator(email, "Please enter a valid email address")){
                                return true;
                            }
                        }
                    }
                }
            }
        }


        return false;

    }

    function notEmpty(elem, helperMsg){
        if(elem.value.length == 0){
            alert(helperMsg);
            elem.focus(); // set the focus to this input
            return false;
        }
        return true;
    }

    function isNumeric(elem, helperMsg){
        var numericExpression = /^[0-9]+$/;
        if(elem.value.match(numericExpression)){
            return true;
        }else{
            alert(helperMsg);
            elem.focus();
            return false;
        }
    }

    function isAlphabet(elem, helperMsg){
        var alphaExp = /^[a-zA-Z]+$/;
        if(elem.value.match(alphaExp)){
            return true;
        }else{
            alert(helperMsg);
            elem.focus();
            return false;
        }
    }

    function isAlphanumeric(elem, helperMsg){
        var alphaExp = /^[0-9a-zA-Z]+$/;
        if(elem.value.match(alphaExp)){
            return true;
        }else{
            alert(helperMsg);
            elem.focus();
            return false;
        }
    }

    function lengthRestriction(elem, min, max){
        var uInput = elem.value;
        if(uInput.length >= min && uInput.length <= max){
            return true;
        }else{
            alert("Please enter between " +min+ " and " +max+ " characters");
            elem.focus();
            return false;
        }
    }

    function madeSelection(elem, helperMsg){
        if(elem.value == "Please Choose"){
            alert(helperMsg);
            elem.focus();
            return false;
        }else{
            return true;
        }
    }

    function emailValidator(elem, helperMsg){
        var emailExp = /^[\w\-\.\+]+\@[a-zA-Z0-9\.\-]+\.[a-zA-z0-9]{2,4}$/;
        if(elem.value.match(emailExp)){
            return true;
        }else{
            alert(helperMsg);
            elem.focus();
            return false;
        }
    }
    </script>

</head>
</html>

Code (markup):

then check the user is already there in the table...

check user and signup

<?php // signup.php
//include_once 'header.php';
echo <<<_END
<script>
function checkUser(user)
{
if (user.value == '')
{
document.getElementById('info').innerHTML = ''
return
}
params = "user=" + user.value
request = new ajaxRequest()
request.open("POST", "checkuser.php", true)
request.setRequestHeader("Content-type",
"application/x-www-form-urlencoded")
request.setRequestHeader("Content-length", params.length)
request.setRequestHeader("Connection", "close")
request.onreadystatechange = function()
{
if (this.readyState == 4)
{
if (this.status == 200)
{
if (this.responseText != null)

{
document.getElementById('info').innerHTML =
this.responseText
}
else alert("Ajax error: No data received")
}
else alert( "Ajax error: " + this.statusText)
}
}
request.send(params)
}
function ajaxRequest()
{
try
{
var request = new XMLHttpRequest()
}
catch(e1)
{
try
{
request = new ActiveXObject("Msxml2.XMLHTTP")
}
catch(e2)
{
try
{
request = new ActiveXObject("Microsoft.XMLHTTP")
}
catch(e3)
{
request = false
}
}
}
return request

}
</script>
<h3>Sign up Form</h3>
_END;
$error = $user = $pass = "";
if (isset($_SESSION['user'])) destroySession();
if (isset($_POST['user']))
{
$user = sanitizeString($_POST['user']);
$pass = sanitizeString($_POST['pass']);
if ($user == "" || $pass == "")
{
$error = "Not all fields were entered<br /><br />";
}
else

{
$query = "SELECT * FROM members WHERE user='$user'";
if (mysql_num_rows(queryMysql($query)))
{
$error = "That username already exists<br /><br />";
}
else
{
$query = "INSERT INTO rnmembers VALUES('$user', '$pass')";
queryMysql($query);
}
die("<h4>Account created</h4>Please Log in.");
}
}
echo <<<_END
<form method='post' action='signup.php'>$error
Username <input type='text' maxlength='16' name='user' value='$user'
onBlur='checkUser(this)'/><span id='info'></span><br />
Password <input type='text' maxlength='16' name='pass'
value='$pass' /><br />
&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
<input type='submit' value='Signup' />
</form>
_END;
?>

Code (markup):

<form method='post' action='signup.php'>$error
Username <input type='text' maxlength='16' name='user' value='$user'
onBlur='checkUser(this)

Code (markup):

so javascript ajax calling a php file onblur... and that php file doing some things ... then.. on submit .... the form calling another php file ...

 

i cant find the edit button .. otherwise i would have edited my earlier posts.. and posted the improved version of my concept of a nice html form ...
which has html javascript javascript ajax php and mysql ...