INSERT records using AJAX

[robert_gsfame]

hi, i am new to AJAX and i have problems when cope with query. How can i insert a record into database

 

<script type="text/javascript">

function addcontact(str)

{

if (window.XMLHttpRequest)

  {

  xmlhttp=new XMLHttpRequest();

  }

else

  {

  xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");

  }

xmlhttp.open("GET","page2.php?id="+str);

xmlhttp.onreadystatechange=function()

  {

  if (xmlhttp.readyState==4 && xmlhttp.status==200)

    {

    document.getElementById("ajaxpage").innerHTML=xmlhttp.responseText;

    }else{

document.getElementById("ajaxpage").innerHTML="<img src=loading.gif>";}

  }

xmlhttp.send();

}

</script>

 

here is the html code

<a href=javascript:void(0) onclick=addcontact('123')>add Contact</a>

 

i wish to pass the value of 123 using $_GET to page2.php. in page2.php, it will execute the INSERT query and change the <a href=javascript:void(0) onclick=addcontact('123')>add Contact</a> into "Your contact has been added successfully"

 

thx