PHP,CSS,JQUERY,HTML tips for beginners

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In this section i create a page for creation for user profile .

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profile.php

<script language="javascript">
 function displayDiv(id)
 {
  document.getElementById(id).style.display='';
 }
 function hideDiv()
 {
  document.getElementById("pofile").style.display='none';
 }

</script>

  <?php
  include("connect.php");
  if(isset ($error)  && $error==true)
    
  {
   ?>
   <center>
   <div style="border:1px solid #F00; background-color:#FFF2FF; width:300px;">
   <?php
   echo $errorMessage;
   ?>
   </div>
   </center>
   <?php
  }
          
  ?>

<?php if(isProfileCreated()==1)
 { 

?>
 <script language="javascript">
window.location="viewMyProfile.php";
</script>
 <?php 
  }
  
 else
 {

?>

<a href="javascript:displayDiv('pofile')">Create Profile</a>


<link type="text/css" rel="stylesheet"  href="style.css"/>
<div id="pofile" <?php if(!$error) {?> style="display:none;" <?php }?>> 
<form name="userCreateProfile" method="post" action="profile_action.php">
<center>
<div ><h3>Create Profile</h3>
            <div>Name:
            <input name="userName"  type="text" value="<?php if(isset($_POST['userName'])) echo $_POST['userName']; ?>"id="Name">*
            </div>
            
            </br>
            <div>Father's Name:
            <input name="userfatherName" type="text" value="<?php if(isset($_POST['userfatherName'])) echo $_POST['userfatherName'];?>" id="fatherName">*
            </div>
            
            </br>
            <div>Occupation:
            <input name="userOccupation" type="text" value="<?php if(isset($_POST['userOccupation'])) echo $_POST['userOccupation']; ?>" id="Occupation">*
            </div>
            
            </br>
            <div>Nationality:
            <input name="userNationality" type="text" value="<?php if(isset($_POST['userNationality'])) echo $_POST['userNationality']; ?>" id="Nationality">*
            </div>
             </br>
            <div>Religion:
            <input name="userReligion" type="text" value="<?php if(isset($_POST['userReligion'])) echo $_POST['userReligion']; ?>" id="Religion">*
            </div>
             </br>
           
            <div>Address:
            <textarea rows="10" cols="35" name="userAddress"> 
            </textarea>
            </div>
              </br>
            <div>Designation:
            <input name="userDesignation" type="text" value="<?php if(isset($_POST['userDesignation'])) echo $_POST['userDesignation']; ?>" id="Designation">*
            </div>
             </br>
              <div>Country:
              <?php  $query="SELECT COUNTRY_ID, COUNTRY from  countrys where ISACTIVE=1 ORDER BY COUNTRY"; 
       $result=mysql_query($query);
    
     ?>
            
              <select name="country" >
                <option value="" >Select a country</option>
                <?php while($country =mysql_fetch_array($result))
    {
     ?>
                    <option value="<?php echo $country['COUNTRY_ID'];?>" <?php if($country['COUNTRY_ID']==$_REQUEST['country']) echo 'selected';?> > <?php echo $country['COUNTRY'];?></option>
                    <?php
    }
    ?>
              </select>
              
               </br>
               </br>
               <input name="Create" type="submit" value="Create"/><input name="Reset" type="Reset" value="Reset"/>
               <input name="Cancel" onClick="hideDiv()" type="button" value="Cancel"/>
            </div>
            
</div>

</center>
</form>

</div>
<div id="gallery" style="display:none;">Gallery</div>
<?php
 }
function isProfileCreated()
{
  $query="select userName  from  create_profile where userid='{$_SESSION['id']}'";
   $result=mysql_query($query);
   $val= mysql_num_rows($result);
 
   return $val;
}
 
?>

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profile_action.php

<?php
session_start();
include("connect.php");

//..........................get values from from.........................................................//

$userName=$_REQUEST['userName'];
$userfatherName = $_REQUEST['userfatherName'];
$userOccupation = $_REQUEST['userOccupation'];
$userNationality = $_REQUEST['userNationality'];
$userReligion    =   $_REQUEST['userReligion'];
$userAddress    =  $_REQUEST['userAddress'];
$userDesignation =  $_REQUEST['userDesignation'];
$Country=$_REQUEST['country']; 

// .......................Error Message................................

     $error=false;
     $errorMessage="";

     if(empty($userName))
     {
      $error=true;
      $userNameError=true;
      $errorMessage.="Please provide username.</br>";
     }
     if(empty($userfatherName))
     {
      $error=true;
      $userfatherNameError=true;
      $errorMessage.="Please provide Father's name.</br>";
     }
     if(empty($userNationality))
     {
      $error=true;
      $userNationalityError=true;
      $errorMessage.="Please provide Nationality.</br>";
     }
     if(empty($userReligion ))
     {
      $error=true;
      $userReligionNameError=true;
      $errorMessage.="Please provide Religion.</br>";
     }
     if(empty($userDesignation))
     {
      $error=true;
      $userDesignationNameError=true;
      $errorMessage.="Please provide Designation.</br>";
     }
     /*if(empty($country))
     {
      $error=true;
      $countryError=true;
      $errorMessage.="Please select country</br>";
     }*/

//..........................insert data .........................................................//
      if($error)
     
      {
     
       include("profile.php");
      }
      else
      {
        $sql="
          INSERT into  create_profile 
          (
          userid,
           userName,
           userfatherName,
           userOccupation,
           userNationality,
           userReligion,
           userAddress,
           userDesignation,
           country
          )
          values
          
          ('$_SESSION[id]','$userName','$userfatherName','$userOccupation','$userNationality','$userReligion','$userAddress','$userDesignation','$Country')
          
         ";
         $result=mysql_query($sql);
         $id=mysql_insert_id();
           if($result)
           {
          
           
           ?>
                                            <script language="javascript">
           window.location="viewMyProfile.php?id=<?php echo $id;?>";
           </script>
           <?php
         } 
 
      }
?>