/**
 * Open a connection to the specified URL, which is
 * intended to provide an XML message.  The specified data
 * is sent to the server as parameters.  This is the same as
 * calling xmlOpen("POST", url, toSend, responseHandler).
 *
 * @param string url    The URL to connect to.
 * @param string toSend The data to send to the server; must be URL encoded.
 * @param function responseHandler The Javascript function handling server response.
 */
function xmlPost(url, toSend, responseHandler)
{
    xmlOpen("POST", url, toSend, responseHandler);
}

/**
 * Open a connection to the specified URL, which is
 * intended to provide an XML message.  No other data is
 * sent to the server.  This is the same as calling
 * xmlOpen("GET", url, null, responseHandler).
 *
 * @param string url    The URL to connect to.
 * @param function responseHandler The Javascript function handling server response.
 */
function xmlGet(url, responseHandler)
{
    xmlOpen("GET", url, null, responseHandler);
}

/**
 * Open a connection to the specified URL, which is
 * intended to respond with an XML message.
 *
 * @param string method The connection method; either "GET" or "POST".
 * @param string url    The URL to connect to.
 * @param string toSend The data to send to the server; must be URL encoded.
 * @param function responseHandler The Javascript function handling server response.
 */
function xmlOpen(method, url, toSend, responseHandler)
{
//    if (window.XMLHttpRequest)
//    {
//        // browser has native support for XMLHttpRequest object
//        req = new XMLHttpRequest();
//    }
//    else if (window.ActiveXObject)
//    {
//        // try XMLHTTP ActiveX (Internet Explorer) version
//        req = new ActiveXObject("Microsoft.XMLHTTP");
//    }

    var req = createXMLHTTPObject();
	if (!req) return;

    if(req)
    {
        req.onreadystatechange = responseHandler;
        req.open(method, url, true);
        req.setRequestHeader("content-type", "application/x-www-form-urlencoded");
        req.send(toSend);
    }
    else
    {
        alert('Your browser does not seem to support XMLHttpRequest.');
    }
}

/**
 * Gets the first child node of <code>parent</code> with the
 * specified tag name.
 *
 * @param parent the parent XML DOM node to search
 * @param tagName the tag name of the child node to search for
 */
function getNode(parent, tagName)
{
    var i;
    var max = parent.childNodes.length;

    // Check each child node
    for(i = 0; i < max; i++)
    {
        if(parent.childNodes[i].tagName)
        {
            if(parent.childNodes[i].tagName.toUpperCase() == tagName.toUpperCase())
            {
                // We found a matching child node; return it.
                return parent.childNodes[i];
            }
        }
    }
    // One was not found; return null
    return null;
}

/**
 * Gets the first child node of <code>parent</code> with the
 * specified tag name and whose value of the 'key' attribute
 * is <code>key</code>.
 *
 * @param parent the parent XML DOM node to search
 * @param tagName the tag name of the child nodes to search in
 * @param key the value of the 'key' attribute to search on
 */
function getNodesWithKey(parent, tagName, key)
{
    var i;
    var cellNodes = parent.getElementsByTagName(tagName);
    var max = cellNodes.length;

    // Check each cell node for the specified value for
    // the 'key' attribute
    for(i = 0; i < max; i++)
    {
        if(cellNodes[i].getAttribute('key') == key)
        {
            // We found a matching cell node; return it.
            return cellNodes[i];
        }
    }
    // One was not found; return null
    return null;
}

/**
 * quirksmode
 */

/* XMLHTTP */

function sendRequest(url,callback,postData,wait) {
	var req = createXMLHTTPObject();
	if (!req) return;
	var method = (postData) ? "POST" : "GET";
	req.open(method,url);
	req.setRequestHeader('User-Agent','XMLHTTP/1.0');
	if (postData)
		req.setRequestHeader('Content-type','application/x-www-form-urlencoded');
	req.onreadystatechange = function () {
		if (req.readyState != 4) return;
		if (req.status != 200 && req.status != 304) {
//			alert('HTTP error ' + req.status);
			return;
		}
		callback(req);
	}
	if (req.readyState == 4) return;
	req.send(postData);
}

function XMLHttpFactories() {
	return [
		function () {return new XMLHttpRequest()},
		function () {return new ActiveXObject("Msxml2.XMLHTTP")},
		function () {return new ActiveXObject("Msxml3.XMLHTTP")},
		function () {return new ActiveXObject("Microsoft.XMLHTTP")}
	];
}

function createXMLHTTPObject() {
	var xmlhttp = false;
	var factories = XMLHttpFactories();
	for (var i=0;i<factories.length;i++) {
		try {
			xmlhttp = factories[i]();
		}
		catch (e) {
			continue;
		}
		break;
	}
	return xmlhttp;
}

function handleRequest(req) {
	document.getElementById('report').innerHTML = req.responseText;
}

function handleRequesty(req) {
	document.getElementById('menu').innerHTML = req.responseText;
}

function getObj(name) {
	if (document.getElementById)
	{
		obj = document.getElementById(name);
		this.style = document.getElementById(name).style;
	}
	else if (document.all)
	{
		this.obj = document.all[name];
		this.style = document.all[name].style;
	}
	else if (document.layers)
	{
		this.obj = getObjNN4(document,name);
		this.style = this.obj;
	}
}

function getObjNN4(obj, name) {
	var x = obj.layers;
	var foundLayer;
	for (var i=0;i<x.length;i++)
	{
		if (x[i].id == name)
		foundLayer = x[i];
		else if (x[i].layers.length)
		var tmp = getObjNN4(x[i],name);
		if (tmp) foundLayer = tmp;
	}
	return foundLayer;
}

function getElementsByTagNames(list,obj) {
	if (!obj) var obj = document;
	var tagNames = list.split(',');
	var resultArray = new Array();
	for (var i=0;i<tagNames.length;i++) {
		var tags = obj.getElementsByTagName(tagNames[i]);
		for (var j=0;j<tags.length;j++) {
			resultArray.push(tags[j]);
		}
	}
	var testNode = resultArray[0];
	if (!testNode) return [];
	if (testNode.sourceIndex) {
		resultArray.sort(function (a,b) {
				return a.sourceIndex - b.sourceIndex;
		});
	}
	else if (testNode.compareDocumentPosition) {
		resultArray.sort(function (a,b) {
				return 3 - (a.compareDocumentPosition(b) & 6);
		});
	}
	return resultArray;
}

function addEventSimple(obj,evt,fn) {
	if (obj.addEventListener)
		obj.addEventListener(evt,fn,false);
	else if (obj.attachEvent)
		obj.attachEvent('on'+evt,fn);
}

function removeEventSimple(obj,evt,fn) {
	if (obj.removeEventListener)
		obj.removeEventListener(evt,fn,false);
	else if (obj.detachEvent)
		obj.detachEvent('on'+evt,fn);
}