var AJAX_error	= '';

function AJAX_makeHttpRequest(request_method, request_url, request_variables, callback_function, return_xml)
	{
	//alert(request_method);
	// ========================
	// I.) INITIALIZE XMLHttp.
	// ========================
	
	var http_request 	= false;

	// ----------------------------
	// I A.) Native XMLHttpRequest object (i.e. Mozilla, Safari, etc.)
	// ----------------------------
	if (window.XMLHttpRequest)
		{
		http_request = new XMLHttpRequest();
		if (http_request.overrideMimeType)
			{
			http_request.overrideMimeType('text/xml');
			}
		}

	// ----------------------------
	// I B.) ActiveX XMLHttpRequest object (i.e. IE)
	// ----------------------------
	else if (window.ActiveXObject)
		{
		try
			{
			http_request = new ActiveXObject("Msxml2.XMLHTTP");
			}
		catch (e)
			{
			try
				{
				http_request = new ActiveXObject("Microsoft.XMLHTTP");
				}
			catch (e) {}
			}
		}
	
	
	
	// ========================
	// II.) VALIDATION: No XMLHttp Support.
	// ========================
	
	if (!http_request)
		{
		//alert('Browser doesn\'t support this feature.');
		return false;
		}
	
	
	
	// ========================
	// III.) SET RESULT HANDLERS.
	// ========================
	
	http_request.onreadystatechange = function()
		{
		if (http_request.readyState === 4)
			{
			if (http_request.status === 200)
				{
				if (return_xml === true)
					{
					eval(callback_function + '(http_request.responseXML)');
					}
				else
					{
					eval(callback_function + '(http_request.responseText)');
					}
				}
			else
				{
				//alert('There was a problem with the request.(Code: ' + http_request.status + ')');
				}
			}
		};
	
	
	
	// ========================
	// IV.) SEND REQUEST.
	// ========================
	
	//alert(request_method);
	//alert(request_variables);

	// ----------------------------
	// IV A.) Create URL, Depending upon Request Method
	// ----------------------------
	var final_url		= request_url;
	
	if (request_method.toUpperCase()==='GET' && request_variables != '')
		{
		final_url		= request_url+'?'+request_variables;
		}
	//alert(final_url);

	
	// ----------------------------
	// IV B.) Open Request.
	// ----------------------------
	/*
	try
		{
		http_request.open(request_method, final_url, true);
		}
	catch (e)
		{
		//console.log(e);
		}
	*/

	
		//console.log(request_method);
		//console.log(final_url);
		http_request.open(request_method, final_url, true);
	
	// ----------------------------
	// IV C.) Set Header and Variables.
	// ----------------------------
	var final_variables	= null;
	if (request_method.toUpperCase()==='POST')
		{
		final_variables	= request_variables;
		var contentType = "application/x-www-form-urlencoded; charset=UTF-8";
		http_request.setRequestHeader("Content-Type", contentType);
		}
	//alert(final_variables);
	
	// ----------------------------
	// IV D.) Send Request.
	// ----------------------------
	http_request.send(final_variables);
	
	
	
	return true;
	}

function makeRequest(request_url, request_variables, callback_function)
	{
	if (request_variables==null||request_variables==undefined||request_variables=='')
		{
		request_variables='';
		}
	
	if (callback_function==null||callback_function==undefined||callback_function=='')
		{
		callback_function='APA_cD';
		}
	
	AJAX_makeHttpRequest('GET', request_url, request_variables, callback_function, true);
	}

function APA_makeRequest(request_url, request_variables, callback_function)
	{
	if (request_variables==null||request_variables==undefined||request_variables=='')
		{
		request_variables='';
		}
	
	if (callback_function==null||callback_function==undefined||callback_function=='')
		{
		callback_function='APA_cD';
		}
	
	AJAX_makeHttpRequest('GET', request_url, request_variables, callback_function, true);
	}


// AJAX_callbackDefault
function APA_cD(result){}

/**
 *
 */
function encodeData(s_data)
	{
	s_data	= s_data.replace(/\r\n/g, "\n");
	
	if (encodeURIComponent)
		{
		s_data = encodeURIComponent(s_data);
		}
	else
		{
		s_data = escape(s_data);
		}
	
	return s_data;
	}