Hallo,
I am trying to make a survey page on my website using html, JavaScript and php then transferring the data to a MySQL, but i can't get the information from the page to the mysql if anyone could help me out in anyway i would be so grateful.

HTML and Javascript for the questions.
Code:
<!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>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Internet Survey - Section 1</title>
<script type="text/javascript">

function ajaxFunction(){
	var ajaxRequest; 
	var browser = navigator.appName; 
	if(browser == "Microsoft Internet Explorer"){
		
		ajaxRequest = new ActiveXObject("Microsoft.XMLHTTP");
	}else{
		
		ajaxRequest = new XMLHttpRequest();
	}
	return ajaxRequest; 


	 var data = 'Name=' + escape(document.getElementById("Name").value) +',Location='+ escape(document.getElementById("Location").value) +',Age='+ escape(document.getElementById("Age").value)+',Job='+escape(document.getElementById("Job").value) +',Job1='+ escape(document.getElementById("Job1").value) +',CompOwn='+ escape(document.getElementById("CompOwn").value) +',InternetAc='+ escape(document.getElementById("InternetAc").value);
	
	var string = data;
	ajaxRequest.open("get", "php_s1_addrow.php" + string, true);
  	ajaxRequest.send(null);
	}
</script>

</head>
<body>
<h1><strong>Section 1 - Personal Information</strong></h1>
<blockquote>
  <p>Please fill out as much information in this section as you want.</p>
  <form method="post" action="php_s1_addrow.php">
    <p>
      <label for="Name">Name</label>
      <input name="Name" type="text" id="Name" size="50" />
    (This can be any name you want, eg username)</p>
    <p>
      <label for="Location">Location</label>
      <input name="Location" type="text" id="Location" size="47" />	
      city, country
    </p>
    <p>
      <label for="Age">Age</label>
      <input name="Age" type="text" id="Age" size="10"  />
    Age</p>
    <p>Sex
      <label>
        <input type="radio" name="Sex" value="male" id="Sex" />
        Male</label>
      <label>
        <input type="radio" name="Sex" value="female" id="Sex" />
      Female</label>
      <br />
      <br />
    </p>
<p>Are you employed?</p>
    <table width="200">
      <tr>
        <td align="center" valign="middle"><label>
          <input type="radio" name="Job" value="yes" id="Job" />
          Yes
        </label></td>
      </tr>
      <tr>
        <td align="center" valign="middle"><blockquote>
          <p>
            <input type="radio" name="Job" value="no" id="Job" />
            No</p>
        </blockquote></td>
      </tr>
    </table>
    <p>
      <label for="Job1">If 'Yes' please say what type of job you do.</label>
      <input name="Job1" type="text" id="Job1" size="35" />
    </p>
    <p>Do you own a computer?</p>
    <table width="200">
      <tr>
        <td align="center"><label>
          <input type="radio" name="CompOwn" value="yes" id="CompOwn" />
          Yes 
        </label></td>
      </tr>
      <tr>
        <td align="center"><label>
          <input type="radio" name="CompOwn" value="no" id="CompOwn" />
          No 
        </label></td>
      </tr>
    </table>
    <p>Do you own any devise other than a computer that can access the internet?</p>
    <table width="200">
      <tr>
        <td align="center" valign="middle"><blockquote>
          <p>
            <input type="radio" name="InternetAc" value="yes" id="InternetAc" />
            Yes</p>
        </blockquote></td>
      </tr>
      <tr>
        <td align="center" valign="middle"><blockquote>
          <p>
            <input type="radio" name="InternetAc" value="no" id="InternetAc" />
            No</p>
        </blockquote></td>
      </tr>
    </table>
    <p>&nbsp;</p>
    <blockquote>
      <blockquote>
        <blockquote>
          <blockquote>
            <blockquote>
              <blockquote>
                <blockquote>
                  <p>
                    <a href="s2_computer.html"> <input type="submit" name="Next_1" id="Next_1" value="Next" onclick='ajaxFunction()'/> </a>
                  </p>
                </blockquote>
              </blockquote>
            </blockquote>
          </blockquote>
        </blockquote>
      </blockquote>
    </blockquote>
    <p>&nbsp;</p>
  </form>
  <p>&nbsp;</p>
</blockquote>
</body>
</html>
The PHP code
Code:
<? 
//initilize PHP

$dbhost = "localhost";
$username = "215756";
$password = "lcar1990";

if($_POST['ajaxFunction()']) //If submit is hit
{
   //then connect as user
   //change user and password to your mySQL name and password
   mysql_connect("localhost","$username","$password"); 
	
   //select which database you want to edit
   mysql_select_db("$username"); 

   //find out how many rows
   $query="SELECT * FROM S1";
   $result=mysql_query($query);
   $num=mysql_numrows($result);
   $id = $num++ ;
   
   //convert all the posts to variables:
	$Name = $_REQUEST['Name'];
	$Location = $_REQUEST['Location'];
	$Age = $_REQUEST['Age'];
	$Employed = $_REQUEST['Job'];
	$Job = $_REQUEST['Job1'];
	$Computer = $_REQUEST['CompOwn'];
	$Dives = $_REQUEST['InternetAc'];
   
   //Insert the values into the correct database with the right fields
   //mysql table = markers
   //table columns = id, name, address, lat, long, type
   //post variables = $title, $address, '$lat, $long, $type
   $result=MYSQL_QUERY("INSERT INTO S1(ID,Name,Location,Age,Employed,Job,Computer,Dives)".
      "VALUES ('NULL', '$Name', '$Location', '$Age, '$Employed', '$Job', '$Computer', '$Dives')"); 

    //confirm
   echo "Query Finished"; 
}
?>
Thank You