var http = false;

if(navigator.appName == "Microsoft Internet Explorer") {
  http = new ActiveXObject("Microsoft.XMLHTTP");
} else {
  http = new XMLHttpRequest();
}

function validate(value,value2,value3,messagename)
{
  http.abort();
  http.open("GET", "getdata.php?action=" + value + "&value=" + value2 + "&value2=" + value3,true);
  http.onreadystatechange=function()
  {
    if(http.readyState == 4)
    {
      document.getElementById(messagename).innerHTML = http.responseText;
      poep=1;
    }
  }
  http.send(null);
}




if (!window.XMLHttpRequest) 
{ 
    window.XMLHttpRequest = function() 
    { 
        var types = [ 
            'Microsoft.XMLHTTP', 
            'MSXML2.XMLHTTP.5.0', 
            'MSXML2.XMLHTTP.4.0', 
            'MSXML2.XMLHTTP.3.0', 
            'MSXML2.XMLHTTP' 
        ]; 

        for (var i = 0; i < types.length; i++) 
        { 
            try 
            { 
                return new ActiveXObject(types[i]); 
            } 
            catch(e) {} 
        } 
     
        return undefined; 
    } 
}

var requests = []; 
function load(url, frame) 
{ 

    var i = requests.length; 
    requests[i] = new XMLHttpRequest(); 

    if (requests[i]) 
    { 
    	   url = 'getdata.php?' + url;    
        requests[i].open('GET', url, true); 
        requests[i].onreadystatechange = function()  
        { 
            if (requests[i].readyState == 4)  
            { 
                document.getElementById(frame).innerHTML = requests[i].responseText; 
                requests[i] = null; 
            } 
        } 
         
        requests[i].send(null); 
    } 
    else 
    { 
        alert('no AJAX support'); 
    } 
}