Ajax dropdown select and grids (PHP)

I am currently trying to build an Ajax / PHP grid based on a dropdown selection.

Firstly on the page I have a dropdown select box, on selection a variable is passed to a PHP page which executes a select statement, and I echo a table grid out to the page.

I have been using the library jquery / jquery.dataTables.js to make the table sortable and easy to navigate. The table / grid is outputted but sorting the columns and paging is not working can anyone help Ps. I have tried other grid libraries as well and the do not work????

Please see the code below thats being used:

<script type="text/javascript" src="/js/jquery-1.5.1.js"></script>
<script type="text/java开发者_运维知识库script" src="/js/jquery.dataTables.js"></script>
<script type="text/javascript" charset="utf-8"> 
$(document).ready(function() {
    $('table#example').dataTable( {
        "sPaginationType": "full_numbers"
    } );
} );
</script> 


<script type="text/javascript">
function selMetal(str,str2){
    if (str==""){
    document.getElementById("txtHint").innerHTML="";
        return;
    } 
    if (window.XMLHttpRequest){
        // code for IE7+, Firefox, Chrome, Opera, Safari
        xmlhttp=new XMLHttpRequest();
    }else{
        // code for IE6, IE5
        xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
    xmlhttp.onreadystatechange=function(){
        if (xmlhttp.readyState==4 && xmlhttp.status==200){
            document.getElementById("txtHint").innerHTML=xmlhttp.responseText;
        }
    }
    xmlhttp.open("GET","sql.php?m="+str+"&s="+str2,true);
    xmlhttp.send();
}
</script>

Then the php script echos the table out inbetween

Thanks for you help in advance.

---

You need not use detect browser and make ajax call. Just use .ajax() method. You should use this code:

<script type="text/javascript">

function selMetal(str,str2){
    if (str==""){
    document.getElementById("txtHint").innerHTML="";
        return;
    } 

    $.ajax({
      url: "sql.php",
      data: {m:str, s:str2},
      success: function(data) { $("#txtHint").html(data); },
      dataType: "html"
    });

}

</script>

Not sure this will solve your problem or not. Give a try :-)