var er0 = "You have not entered email"; //0
var er1 = "Enter a valid email address"; //0
var er2 = "You did not enter a name"; //0
var er3 = "Enter the password"; //1
var er4 = "Repeat password"; //2
var er5 = "Passwords do not match"; //2
var er6 = "Enter about you"; //2
var er7 = "Enter capcha"; //2
var er8 = "Incorrect capcha"; //2
var er9 = "email is already in use";//2

//Функция проверки заполненности полей и корректности мыла



function thisform(form){
	if(form.email.value == "")
	{
		 
            $('#error0').html(er0).slideDown();
            
		return false;
	}
	else {
		var email = form.email.value;
		var regV = /[a-z0-9-_]{2,1000}\@[a-z0-9\-\_]{2,100}\.[a-z0-9]{2,4}/gi;
		var result = email.match(regV);
		if(!result){
			$('#error0').html(er1).slideDown();
			return false;
		}
		if(form.name.value == ""){
		$('#error0').html(er2).slideDown();
		
		return false;
	    }
	   if(form.password.value == ""){
	    $('#error0').html(er3).slideDown();
		return false;
	}
	   if(form.repassword.value == ""){
	    $('#error0').html(er4).slideDown();
		return false;
	}
	  if(form.password.value != form.repassword.value){
	     $('#error0').html(er5).slideDown();
		 return false;
	  } 
	  if(form.me.value == ""){
	     $('#error0').html(er6).slideDown();
		 return false;
	  } 
	  if(form.me.value == ""){
	     $('#error0').html(er6).slideDown();
		 return false;
	  } 
	  

	  if(form.pkey.value == ""){
	     $('#error0').html(er7).slideDown();
		 return false;
	  } 
	else {
		var pkey = form.pkey.value;
		var regV = /[0-9\(\)\-]/gi;
		var result = pkey.match(regV);
		
		if(!result){
			$('#error0').html(er8).slideDown();
			return false;
		}
		
		
	}
	
		
		


		
}
}

function tmp_email($email){

    $select = "SELECT `email` FROM `users` WHERE `email` = '" . $email . "' LIMIT 1";
    $des = mysql_query($select) or die (mysql_error());

    if(mysql_num_rows($des) > 0)
        return "Пользователь с таким email уже существует!";
    else
        return true;
}

echo tmp_mail("mail.mail.ru");

<?php
 include_once('config.php');
 if($_POST['cook'] == "on"){
  //setcookie("email",time()+600);
  setcookie("id",time()+600);
  }
function tmp_email($email){

    $select = "SELECT `email` FROM `users` WHERE `email` = '" . $email . "' LIMIT 1";
    $des = mysql_query($select) or die (mysql_error());

    if(mysql_num_rows($des) > 0)
        return true;
    else
        return false;
}

if(tmp_mail("mail@mail.ru"))
{
    echo 'Пользователь с таким email уже существует!';
    return;
}
else
{
    mysql_query("INSERT INTO...");

	
	
	
 
 }
 function db_insert($iemail,$iname,$ifirstname,$ipassword,$ime){
    $data = date('Y.m.d');
 	$insert = "INSERT INTO users (email,name,firstname,password,me,date) VALUES ('$iemail','$iname','$ifirstname','$ipassword','$ime','$data')";
 	$des = mysql_query($insert) or die(mysql_error()) ;
 	if(!$des){return false;}
 }
function delete_acc($id){
	$delete = mysql_query("DELETE  FROM users WHERE id_user = '$id'") or die(mysql_error());
	if(!delete_acc){return false;}

}
function getPassword($password,$id){
  stripslashes($password);
  $ipassword = trim(md5($password));
  $update = mysql_query("UPDATE users SET password = '$ipassword' WHERE id_user = '$id'")or die(mysql_error()) ;
  if($update){return true;}


}
?>

$select = "SELECT `email` FROM `users` WHERE `email` = '" . mysql_real_escape_string($email) . "' LIMIT 1";

<?php
 include_once('config.php');
 if($_POST['cook'] == "on"){
  //setcookie("email",time()+600);
  setcookie("id",time()+600);
  }
function tmp_email($email){

    $select = "SELECT `email` FROM `users` WHERE `email` = '" . mysql_real_escape_string($email) . "' LIMIT 1";
    $des = mysql_query($select) or die (mysql_error());

    if(mysql_num_rows($des) > 0)
        return true;
    else
        return false;
}

if(tmp_email("$_POST'$email'"))
{
    echo 'Пользователь с таким email уже существует!';
    return;
}
else
{
    mysql_query("INSERT INTO users (email,name,firstname,password,me,date) ");

	
	
	
 
 }
 function db_insert($iemail,$iname,$ifirstname,$ipassword,$ime){
    $data = date('Y.m.d');
 	$insert = "INSERT INTO users (email,name,firstname,password,me,date) VALUES ('$iemail','$iname','$ifirstname','$ipassword','$ime','$data')";
 	$des = mysql_query($insert) or die(mysql_error()) ;
 	if(!$des){return false;}
 }
function delete_acc($id){
	$delete = mysql_query("DELETE  FROM users WHERE id_user = '$id'") or die(mysql_error());
	if(!delete_acc){return false;}

}
function getPassword($password,$id){
  stripslashes($password);
  $ipassword = trim(md5($password));
  $update = mysql_query("UPDATE users SET password = '$ipassword' WHERE id_user = '$id'")or die(mysql_error()) ;
  if($update){return true;}


}
?>

function tmp_email($email){

    $select = "SELECT `email` FROM `users` WHERE `email` = '" . $email . "' LIMIT 1";
    $des = mysql_query($select) or die (mysql_error());

    if(mysql_num_rows($des) > 0)
        echo "<script language='JavaScript'>alert('Пользователь с таким email уже существует!')</script>";
    else
        return true;
}

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>Создание необычной формы авторизации, регистрации и напоминации (ДЕМО)</title>
    <link href="css/vrStyle.css" rel="stylesheet" type="text/css" />

    <script src="js/jquery-1.3.2.min.js" type="text/javascript"></script>

    <script src="js/jquery.easing.min.1.3.js" type="text/javascript"></script>

    <script src="js/muScript.js" type="text/javascript"></script>
	
<style type="text/css">
.remindPass{
}
.signup{
}
</style>
 <style type="text/css">
				.good
{
    background-color: #00FF00;
    margin: 12px 10px 10px 10px;
    border: solid 1px #cc1111;
    font-size: 8pt;
    font-weight: bold;
    color: #cc1111;
    padding: 5px;
}
				</style>
</head>

<body>

    <div id="vrWrapper">
        <div id="wr" class="wr">
            <div class='loginBlock' id="signup">
               
			   
			   <html>
<head>
  <title>Регистрация</title>
  
  <link rel="stylesheet" type="text/css" href="<?=URI_PATH;?>/tmp/css/style.css" media="screen" />
  <script type="text/javascript" src="<?=URI_PATH;?>/js/script.js"></script> 
  <script src="js/muScript.js" type="text/javascript"></script>
</head>  

<body>








<html>

<script type="text/javascript" src="js/script.js"></script> 


 <div id="wraper">
 
 <form action="register.php"  method="post" name="form" id="registration"> 
 
  <h4>Регистрация</h4><br />
  
  <label for="textfield"></label>  
  <center>
  <table   border="0" cellspacing="0" cellpadding="0">
    <tr>
      <td><label for="textfield"><font color="red">*</font> E mail:</label></td>
      <td><input name="email" class="input" type="text" maxlength="25"/></td>
    </tr>
    <tr>
      <td><label for="textfield"><br><font color="red">*</font> Имя:</label></td>
      <td><br><input name="name" class="input" type="text"  maxlength="15"/> </td>
    </tr>
    <tr>
      <td><label for="textfield"><br><font color="red">*</font> Фамилия:</label></td>
      <td><br><input name="firstname" class="input" type="text" maxlength="25"/></td>
    </tr>
    <tr>
      <td><label for="textfield"><br><font color="red">*</font> Пароль:</label></td>
      <td><br><input name="password" class="input" type="password" maxlength="25"/></td>
    </tr>
    <tr>
      <td><label for="textfield"><br><font color="red">*</font> Повтор пороля:</label></td>
      <td><br><input name="repassword" class="input" type="password" maxlength="25"/></td>
    </tr>
	
	<tr>
      <td><label for="textfield"><br><font color="red">*</font> О себе:</label></td>
      <td><br><textarea name="me" cols="17" rows="5" style="resize: none;" class="text" maxlength="300"></textarea></td>
    </tr>
	<tr>
      <td><label for="textfield"><font color="red">*</font> Капча:</label></td>
      <td><br><input name="pkey" type="text" class="input" maxlength="5"><center><img src="captcha/captcha.php"></center></td>
    </tr>
  </table>
  <p>
  <br>
    <input type="submit" value="Зарегестрироватся" name="button" class="button" onClick="return thisform(this.form)"> 
	
  </p>
  
</form>


  
  </center>
</div>
</center>
</body>
</html>

                <div id="error0" class="error displaynone">
                </div>
                <div class='buttonDiv'>
                    </div>
                <div class='additional'>
                    <a href="#" class='remindPass'>Вспомнить пароль</a><a href="#" class='signin'>Войти</a></div>
            </div>
            
            <form action="ath.php"  method="post" name="form" id="registration"> 
            <div class='loginBlock' id="signin">
			
                <label for="email">Email:</label>
                <input name="email" class="input" type="text" maxlength="25"/>
                
                <label for="password">Пароль:</label>
                <input name="password" class="input" type="password"  maxlength="25"/>
                
                <div id="error1" class="error displaynone"></div>
                
                <div class='buttonDiv'>
				
                    <input type="submit" value="Войти" name="button" class="button" > 
                </div>
              
			   
                <div class='additional'>
                    <a href="#" class='remindPass'>Вспомнить пароль</a>
					 <a href="#" class='signup'>Зарегистрироваться</a>
                    
                </div>
            </div>
            
            
            
            <div class='loginBlock' id="remindPass">
                <div class="description">
                    Чтобы вспомнить пароль, вспомните для начала хотя бы email.
                </div>
                <label for="email">
                    Email:</label>
                <input id="remindEmail" type="text" class='textinput' />
                <div id="error2" class="error displaynone">
                </div>
                <div id="message0" class="message displaynone">
                </div>
                <div class='buttonDiv'>
                    <input id="Button2" type="button" value="Выслать пароль" onclick="RemindPassword()" /></div>
                <div class='additional'>
                    <a href="#" class='signin'>Войти</a><a href="#" class='signup'>Зарегистрироваться</a></div>
            </div>
        </div>
    </div>
</body>
</html>

<?php include_once('include/config.php');?>
<?php include_once('include/function.php');?>
<?php
  if (!$_SESSION['id']) {
?>
<?php include_once('tmp/index.tpl');
}else{
      $id = $_SESSION['id'];
      $select = mysql_query("SELECT * FROM users WHERE id_user='$id'");
      $row = mysql_fetch_assoc($select);
      include_once('tmp/reg_index.tpl');
       if($_POST['del']){delete_acc($_SESSION['id']);
           ?>
               <script>alert('Аккакунт успешно удален');
               document.location.href="exit.php";
               </script>
           <?php
           exit;
       } else{ echo "";}



}
?>