function ShowPage(ToPage)	{
	var FromPage = document.getElementById('AtPage').value; 
//	alert('DEBUG FROM PAGE '+ FromPage + ' TO PAGE ' + ToPage);
	document.getElementById('Page'+FromPage).style.display='none';
	document.getElementById('Page'+ToPage).style.display='inline';
	/* Set FROM/TO position */
	var AbdPosition1 = ((ToPage - 1) * ItemsPerPage) + 1;
	document.getElementById('AbdPosition1').innerHTML= AbdPosition1;
	var AbdPosition2 = ((AbdPosition1 + ItemsPerPage) > AanbiedingenAantal)? AanbiedingenAantal: (AbdPosition1 + ItemsPerPage - 1) ;
	document.getElementById('AbdPosition2').innerHTML= AbdPosition2;

	/* Set PREVIOUS/NEXT */
	if(ToPage == 1)	{
		document.getElementById('AbdVorige').style.display='none';
	}
	else 	{ 
		document.getElementById('AbdVorige').style.display='inline';
		document.getElementById('AbdVorige').innerHTML = ' <a href="#" onClick="ShowPage(' + ( ToPage - 1 ) + ')">vorige</a> ';
	}
	
	if(ToPage == AantalPages)	{
		document.getElementById('AbdVolgende').style.display= 'none';	
	}
	else	{
		document.getElementById('AbdVolgende').style.display= 'inline';
		document.getElementById('AbdVolgende').innerHTML = ' <a href="#" onClick="ShowPage(' + ( ToPage + 1 ) + ')">volgende</a> ';		
	}

	/* re-print numbers */
	var TheNumbers = '';
	for(a = 1; a <= AantalPages; a++)	{
		TheNumbers += (a == ToPage)? ' ' + a + ' ' : ' <a href="#" onClick="ShowPage(' + a + ')">' + a + '</a> ';
	}
	document.getElementById('AbdNumbers').innerHTML = TheNumbers;
	
	document.getElementById('AtPage').value = ToPage;
	/*
	Todo
	++ set x OF Y resuls
	++ limit page numbers in case of +5 pages
	++ test the whole thing
	*/	
}

function sack(file) {
	this.xmlhttp = null;
	this.resetData = function() {
		this.method = "POST";
  		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.resetFunctions = function() {
  		this.onLoading = function() { };
  		this.onLoaded = function() { };
  		this.onInteractive = function() { };
  		this.onCompletion = function() { };
  		this.onError = function() { };
		this.onFail = function() { };
	};

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

	this.createAJAX = function() {
		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") {
					totalurlstring = this.requestFile + this.queryStringSeparator + this.URLString;
					this.xmlhttp.open(this.method, totalurlstring, true);
				} else {
					this.xmlhttp.open(this.method, this.requestFile, true);
					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);
			}
		}
	};

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

var ajax = new Array();

function getBestemming(sel)	{
	var ID = sel.options[sel.selectedIndex].value;
	document.getElementById('bestemming_ID').options.length = 0;	// Empty vestiging select box
	document.getElementById('regio_ID').options.length = 0;	// Empty vestiging select box
	document.getElementById('regio_ID').options[document.getElementById('regio_ID').options.length] = new Option('Regio','');
	document.getElementById('stad_ID').options.length = 0;	// Empty vestiging select box
	document.getElementById('stad_ID').options[document.getElementById('stad_ID').options.length] = new Option('Stad','');	
	var index = ajax.length;
	ajax[index] = new sack();
	ajax[index].requestFile = 'http://portal.vakantie.be/remote/zoek.php?jax=1&type=bestemming&ID='+ID;	// Specifying which file to get
	ajax[index].onCompletion = function(){ createBestemming(index) };	// Specify function that will be executed after file has been found
	ajax[index].runAJAX();		// Execute AJAX function
}

function getRegio(sel, soort)	{
	var ID = sel.options[sel.selectedIndex].value;
	document.getElementById('regio_ID').options.length = 0;	// Empty vestiging select box
	document.getElementById('stad_ID').options.length = 0;	// Empty vestiging select box
	document.getElementById('stad_ID').options[document.getElementById('stad_ID').options.length] = new Option('Stad','');	
	var index = ajax.length;
	ajax[index] = new sack();		
	ajax[index].requestFile = 'http://portal.vakantie.be/remote/zoek.php?jax=1&soort='+soort+'&type=regio&ID='+ID;	// Specifying which file to get
	ajax[index].onCompletion = function(){ createRegio(index) };	// Specify function that will be executed after file has been found
	ajax[index].runAJAX();		// Execute AJAX function
}

function getStad(sel)	{
	var ID = sel.options[sel.selectedIndex].value;
	document.getElementById('stad_ID').options.length = 0;	// Empty vestiging select box
	var index = ajax.length;
	ajax[index] = new sack();	
	ajax[index].requestFile = 'http://portal.vakantie.be/remote/zoek.php?jax=1&type=stad&ID='+ID;	// Specifying which file to get
	ajax[index].onCompletion = function(){ createStad(index) };	// Specify function that will be executed after file has been found
	ajax[index].runAJAX();		// Execute AJAX function
}

function createBestemming(index)	{
	var obj = document.getElementById('bestemming_ID'); 
	eval(ajax[index].response);	// Executing the response from Ajax as Javascript code	
}

function createRegio(index)	{
	var obj = document.getElementById('regio_ID');
	eval(ajax[index].response);	// Executing the response from Ajax as Javascript code	
}

function createStad(index)	{
	var obj = document.getElementById('stad_ID');
	eval(ajax[index].response);	// Executing the response from Ajax as Javascript code	
}

function PlaceDesc(Ref, ID, desc)	{
	
	if(document.getElementById('AbdDot'+desc+ID).style.display != 'none')	{
		document.getElementById('AbdDot'+desc+ID).style.display='none';
		document.getElementById('AbdFull'+desc+ID).style.display='inline';	
		Ref.innerHTML='verberg';
	} else	{
		document.getElementById('AbdDot'+desc+ID).style.display='inline';
		document.getElementById('AbdFull'+desc+ID).style.display='none';	
		Ref.innerHTML='meer info';
	}
}

