function AjaxManager()
{

}

AjaxManager.prototype.Execute = function(url, onReadyStateHandler)
{
	var httpRequest = this.GetHttpRequest();
		
	httpRequest.onreadystatechange = onReadyStateHandler;
			
	httpRequest.open("GET", url, true);
			
	httpRequest.send(null);
	
	return 	httpRequest;
}

AjaxManager.prototype.IsComplete = function(httpRequest)
{
	if (httpRequest == undefined)
	{
		return false;
	}
	
	if (httpRequest.readyState == 4 || httpRequest.readyState == "complete")
	{
		return true;
	}
	
	return false;
} 

AjaxManager.prototype.GetHttpRequest = function()
{
	req = null;
	
    // branch for native XMLHttpRequest object
	if(window.XMLHttpRequest)
	{
    	try
		{
			req = new XMLHttpRequest();
       }
		catch(e)
		{
			req = null;
       }
    // branch for IE/Windows ActiveX version
	}
	else if(window.ActiveXObject) 
	{
       	try
		{
        	req = new ActiveXObject("Msxml2.XMLHTTP");
      	}
		catch(e)
		{
       		try
			{
          		req = new ActiveXObject("Microsoft.XMLHTTP");
        	}
			catch(e)
			{
          		req = null;
        	}
		}
	}
	
	return req;
}