/* Simple AJAX Code-Kit (SACK) v1.6.1 */
/* ©2005 Gregory Wild-Smith */
/* www.twilightuniverse.com */
/* Software licenced under a modified X11 licence,
   see documentation or authors website for more details */

function sack(file) {
	this.xmlhttp = null;

	this.loadXmlIntoArray = function()
	{
		if(this.response != '')
		{
			if(this.responseXML.documentElement)
			{
				var oTemp	= this.responseXML.documentElement.getElementsByTagName(this.loadXmlTag);
				var sName	= '';
				var sValue	= '';

				for(var ii = 0;ii < oTemp.length;ii++)
				{
					this.xmlArray[ii]	= new Array();

					for(var jj = 0;jj < oTemp[ii].childNodes.length;jj++)
					{
						sName			= oTemp[ii].childNodes[jj].nodeName;

						if(oTemp[ii].childNodes[jj].firstChild)
						{
							sValue		= oTemp[ii].childNodes[jj].firstChild.nodeValue;
						}
						else
						{
							sValue		= '';
						}

						this.xmlArray[ii][sName] = sValue;
					}
				}
			}
		}
	}

	this.resetData = function() {
		this.async = true;
		this.method = "GET";
  		this.queryStringSeparator = "?";
		this.argumentSeparator = "&";
		this.URLString = "";
		this.encodeURIString = true;
  		this.execute = false;
  		this.element = null;
		this.elementObj = null;
		this.requestFile = file;
		this.vars = new Object();
		this.responseStatus = new Array(2);
		this.xmlArray = new Array();
		this.temp = new Array();
		this.loadXmlTag = '';
  	};

	this.resetFunctions = function() {
  		this.onLoading = function() { };
  		this.onLoaded = function() { };
  		this.onInteractive = function() { };
  		this.onCompletion = function() { };
  		this.onError = function()
  		{
  			alert(this.response);
  		};
		this.onFail = function() { };
	};

	this.reset = function() {
		this.resetFunctions();
		this.resetData();
	};

	this.createAJAX = function()
	{
		try
		{
			// Firefox, Opera 8.0+, Safari
			this.xmlhttp		= new XMLHttpRequest();
		}
		catch(e)
		{
			// Internet Explorer
			try
			{
				this.xmlhttp	= new ActiveXObject("Msxml2.XMLHTTP");
			}
			catch(e)
			{
				this.xmlhttp	= new ActiveXObject("Microsoft.XMLHTTP");
			}
		}

		if(this.xmlhttp == null)
		{
			this.failed 		= true;
			alert(				'Your browser does not support AJAX.');
			return;
		}

		/*try
		{
			this.xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
		}
		catch(e1)
		{
			try
			{
				this.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
			}
			catch (e2)
			{
				this.xmlhttp = null;
			}
		}

		if(!this.xmlhttp)
		{
			if(typeof XMLHttpRequest != "undefined")
			{
				this.xmlhttp = new XMLHttpRequest();
			}
			else
			{
				this.failed = true;
			}
		}*/
	};

	this.setVar = function(name, value){
		this.vars[name] = Array(value, false);
	};

	this.encVar = function(name, value, returnvars) {
		if (true == returnvars) {
			return Array(encodeURIComponent(name), encodeURIComponent(value));
		} else {
			this.vars[encodeURIComponent(name)] = Array(encodeURIComponent(value), true);
		}
	}

	this.processURLString = function(string, encode)
		{
		encoded = encodeURIComponent(this.argumentSeparator);
		regexp = new RegExp(this.argumentSeparator + "|" + encoded);
		varArray = string.split(regexp);
		for (i = 0; i < varArray.length; i++){
			urlVars = varArray[i].split("=");
			if (true == encode){
				this.encVar(urlVars[0], urlVars[1]);
			} else {
				this.setVar(urlVars[0], urlVars[1]);
			}
		}
	}

	this.createURLString = function(urlstring)
	{
		if(this.encodeURIString && this.URLString.length)
		{
			this.processURLString(this.URLString, true);
		}

		if(urlstring)
		{
			if(this.URLString.length)
			{
				this.URLString += this.argumentSeparator + urlstring;
			}
			else
			{
				this.URLString = urlstring;
			}
		}

		// prevents caching of URLString
		this.setVar("rndval", new Date().getTime());

		urlstringtemp = new Array();
		for (key in this.vars) {
			if (false == this.vars[key][1] && true == this.encodeURIString) {
				encoded = this.encVar(key, this.vars[key][0], true);
				delete this.vars[key];
				this.vars[encoded[0]] = Array(encoded[1], true);
				key = encoded[0];
			}

			urlstringtemp[urlstringtemp.length] = key + "=" + this.vars[key][0];
		}
		if (urlstring){
			this.URLString += this.argumentSeparator + urlstringtemp.join(this.argumentSeparator);
		} else {
			this.URLString += urlstringtemp.join(this.argumentSeparator);
		}
	}

	this.runResponse = function() {
		eval(this.response);
	}

	this.runAJAX = function(urlstring) {
		if (this.failed) {
			this.onFail();
		} else {
			this.createURLString(urlstring);


			if (this.element) {
				this.elementObj = document.getElementById(this.element);
			}
			if (this.xmlhttp) {
				var self = this;
				if(this.method == "GET")
				{
					if(this.requestFile.indexOf('?') == -1)
					{
						totalurlstring = this.requestFile + this.queryStringSeparator + this.URLString;
					}
					else
					{
						totalurlstring = this.requestFile + this.argumentSeparator + this.URLString;
					}

					this.xmlhttp.open(this.method, totalurlstring, this.async);
				}
				else
				{
					this.xmlhttp.open(this.method, this.requestFile, this.async);

					//try
					//{
						this.xmlhttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded")
					//}
					//catch(e)
					//{
					//}
				}

				this.xmlhttp.onreadystatechange = function() {
					switch (self.xmlhttp.readyState) {
						case 1:
							self.onLoading();
							break;
						case 2:
							self.onLoaded();
							break;
						case 3:
							self.onInteractive();
							break;
						case 4:
							self.response = self.xmlhttp.responseText;
							self.responseXML = self.xmlhttp.responseXML;
							self.responseStatus[0] = self.xmlhttp.status;
							self.responseStatus[1] = self.xmlhttp.statusText;

							if (self.execute) {
								self.runResponse();
							}

							if (self.elementObj) {
								elemNodeName = self.elementObj.nodeName;
								elemNodeName.toLowerCase();
								if (elemNodeName == "input"
								|| elemNodeName == "select"
								|| elemNodeName == "option"
								|| elemNodeName == "textarea") {
									self.elementObj.value = self.response;
								} else {
									self.elementObj.innerHTML = self.response;
								}
							}
							if (self.responseStatus[0] == "200") {
								self.onCompletion();
							} else {
								self.onError();
							}

							self.URLString = "";
							break;
					}
				};

				this.xmlhttp.send(this.URLString);

				if((!this.async) && (!document.all))
				{
					alert(2);

					self.response = self.xmlhttp.responseText;
					self.responseXML = self.xmlhttp.responseXML;
					self.onCompletion();
				}
			}
		}
	};

	this.reset();
	this.createAJAX();
}

var oAjaxLoad;

function AjaxLoad()
{
	if(document.getElementById('load'))
	{
		oAjaxLoad	= setTimeout('Get(\'load\').style.display = \'block\'',250);
	}
}

function AjaxLoadClear()
{
	if(document.getElementById('load'))
	{
		clearTimeout(oAjaxLoad);
		Get('load').style.display = 'none';
	}
}