function AJAXInteraction(url, callback,divID) {

    var req = init();
    req.onreadystatechange = processRequest;
        
    function init() {
      if (window.XMLHttpRequest) {
        return new XMLHttpRequest();
      } else if (window.ActiveXObject) {
        return new ActiveXObject("Microsoft.XMLHTTP");
      }
    }
    
    function processRequest () {
      if (req.readyState == 4) { 
        if (req.status == 200) {
          if (callback) callback(req.responseText,divID);
        }
      }
    }

    this.doGet = function() {
      req.open("GET", url, true);
      req.send(null);
    }
    
    this.doPost = function(body) {
      req.open("POST", url, true);
      req.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
      req.send(body);
    }
}

function CallbackReceiveRequest(responseText,divID)
{
	document.getElementById(divID).innerHTML = "";
	document.getElementById(divID).innerHTML=responseText;
	document.getElementById(divID).style.visibility="visible";
}

function clientDetailBlock(counter)
{
	if (counter == 1)
	{
		var szURL = "/clients/client1.htm?sid=" + Math.random();
	}
	else if (counter == 2)
	{
		var szURL = "/clients/client2.htm?sid=" + Math.random();
	}
		
	document.getElementById("clientDetails").innerHTML = "";
	document.getElementById("clientDetails").innerHTML = "<table width=100% align=center border=0 cellpadding=0 cellspacing=0 bgcolor='#eeeeee' height=100%><tr><td width=100% align=center valign=middle><img src='/_resources/tradeFairs/images/loading.gif' border=0><br><font face=arial size=2><b>Please wait...</b></font></td></tr></table>";	
	var ai = new AJAXInteraction(szURL,CallbackReceiveRequest,"clientDetails");
	ai.doGet();  
}