/**
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

	--------------------------------------------------------------------
	
	Simple banner rotator. Version: 1.4.0
	Download and support: http://www.spyka.net 
	(c) Copyright 2008, 2009 spyka Web Group
	

	For full documentation:  http://www.spyka.net/docs/simple-banner-rotator
	For support:			 http://www.spyka.net/forums


**/

//								EDIT FROM HERE
///////////////////////////////////////////////////////////////////////////////////

/**
		Script settings
**/

var settings = {
	
	'force_size':			0,         		// 	if set to 1 all banners will be resized to the width and height in the next to settings
	'img_width':			468,			//	width to resize all banners to, only takes effect if above is 1
	'img_height':			60, 			// 	height to resize all banners to, only takes effect if above is 1
	
	'refresh_time':			25000,			//	the seconds between refreshs of the banners - use 0 to disable
	'refresh_max':			100,				//	maximum number of refreshs on each page load
	
	'duplicate_banners':	0,				//	keep as 0 to make sure the same banner won't show on the same page. will only take effect
											//  if show_banners(); is used more than once. You must make sure you have enough banners to fill
											//  all the slots else the browser may freeze or give a stack overflow error
	
	'location_prefix': 		'adLocation-',	//	The prefix of the IDs of the <div> which wraps the banners - this div is generated dynamically.
											//  a number will be added on the end of this string. adLocation- was used by default before version 1.4.x
											
	'location_class':		'swb',			//  A class to add to all of the <div>s which wrap the banners, ideal to use for styling banners - use .swb img in your CSS	
	
	'window': 				'_self',		//	Window to open links in, _self = current, _blank = new. Use _top if in a frame!		
	
	'default_ad_loc':		'default'		//	The default adLocation. This is assigned to any banners not given an adLocation in the below banner list
											//  There is no real reason to need to change this
}


/**
		Banners
**/
// banner list syntax: new banner(website_name, website_url, banner_url, show_until_date, adlocation),  DATE FORMAT: dd/mm/yyyy
// if you're not using adlocations just leave it empty like '' as in the last example here
// to make sure a banner is always rotating, just set the date far into the future, i.e. year 3000

var banners = [
	new banner('How to use the free materials from www.vray-materials.de',		'http://www.aversis.be/tutorials/vray/vray_vray-materials.htm', 	'http://www.aversis.be/slices/banners/aversis-tutorial-materials-banner.jpg', 		'20/04/2080',	'rightTop'),
	new banner('Vray Exterior rendering, day and night scene',					'http://www.aversis.be/tutorials/vray/vray_exterior.htm', 			'http://www.aversis.be/slices/banners/aversis-tutorial-exterior-banner.jpg', 		'20/04/2080',	'rightTop'),
    new banner('HDRI in Vray, the easy way',									'http://www.aversis.be/tutorials/vray/vray_hdri_advanced.htm', 		'http://www.aversis.be/slices/banners/aversis-tutorial-hdri-banner.jpg', 			'20/04/2080',	'rightTop'),
	new banner('Interior Tutorial for Vray, including free 3ds Max Scenes!',	'http://www.aversis.be/tutorials/vray/vray_interior.htm', 			'http://www.aversis.be/slices/banners/aversis-tutorial-interior-banner.jpg',		'20/04/2080',	'rightTop'),
	new banner('Master all the irradiance map parameters in Vray!', 			'http://www.aversis.be/tutorials/vray/vray_irmap_settings.htm', 	'http://www.aversis.be/slices/banners/aversis-tutorial-irmap-banner.jpg',			'20/04/2080',	'rightTop')
]

//         				There is no need to edit below here
///////////////////////////////////////////////////////////////////////////////////

/*****
"global" vars
*****/
var used				= 0;
var location_counter	= 0;
var refresh_counter 	= 1;
var map 				= new Array();


/*************
	function banner()
	creates a banner object
*************/
function banner(name, url, image, date, loc)
{
	this.name	= name;
	this.url	= url;
	this.image	= image;
	this.date	= date;
	this.active = 1;
	this.oid = 0;
	
	// if no adlocation is given use the default a adlocation setting
	// this is used if adlocations aren't being used or using pre-1.4.x code
	if(loc != '')
	{
		this.loc = loc;
	}
	else
	{
		this.loc = settings.default_ad_loc;
	}
}


/*************
	function show_banners()
	writes banner <div> HTML and maps ad locations to <div> ID tags
*************/
function show_banners(banner_location)
{
	// increase the counter ready for further calls
	location_counter = location_counter + 1;

	// this part maps the adlocation name supplied by the user to the adlocation
	// ID used by the script
	if(banner_location != '' && banner_location != undefined)
	{
		map[location_counter] = banner_location;
	}
	else
	{
		map[location_counter] = settings.default_ad_loc;
	}

	// writes banner html
	var html = '<div id="' + settings.location_prefix + location_counter + '" class="' + settings.location_class + '"></div>';
	document.write(html);
	// calls the display banners script to fill this ad location
	display_banners(location_counter);
	
}



/*************
	function display_banners()
	displays banners for a given location number
*************/
function display_banners(location)
{
	// used in this function to hold tempoary copy of banners array
	var location_banners	= new Array();
	
	// if no location is given, do nothing
	if(location == '' || !location || location < 0)
	{
		return;
	}
	
	// get total banners
	var am	= banners.length;
	
	// all banners have been displayed in this pass and the user doesnt
	// want to have duplicate banners showing
	if((am == used) && settings.duplicate_banners == 0) {
		return;
	}

	// new for 1.4.x, this takes the list of banners and creates a tempoary list
	// with only the banners for the current adlocation in
	for(i = 0; i < (banners.length); i++)
	{
		banners[i].oid = i;
		if((banners[i].loc == map[location]) && (banners[i].active == 1))
		{
			location_banners.push(banners[i]);
		}
	}

	// same as 1.2.x - finds the banner randomly
	var rand	= Math.floor(Math.random()*location_banners.length);	
	var bn 		= location_banners[rand];
	
	// creates html
	var image_size 	= (settings.force_size == 1) ? ' width="' + settings.img_width + '" height="' + settings.img_height + '"' : '';
	var html 		= '<a href="' + bn.url + '" title="' + bn.name + '" target="' + settings.window + '"><img border="0" src="' + bn.image + '"' + image_size + ' alt="' + bn.name + '" /></a>';
	
	// calculates the date from inputted string, expected formate is DD/MM/YYYY
	var now		= new Date(); 
	var input	= bn.date;
	input		= input.split('/', 3);
	
	// creates a date object with info
	var end_date	= new Date();
	end_date.setFullYear(parseInt(input[2]), parseInt(input[1]) - 1, parseInt(input[0]));
	
	// compares curent date with banner end date
	if((now < end_date) && bn.active == 1) 
	{
		// attempt to find adlocation div
		var location_element = document.getElementById(settings.location_prefix + location);
		
		// couldn't find it, if this message shows there is a problem with show_banners
		if(location_element == null)
		{
			alert('spyka Webmaster banner rotator\nError: adLocation doesn\'t exist!');
		}
		// output banner HTML
		else
		{
			location_element.innerHTML = html;
			
			// if the user doesn't want the same banner to show again deactive it and increase
			// the users banners counter
			if(settings.duplicate_banners == 0)
			{
				banners[bn.oid].active = 0;
				used++;
			}
			return;
		}
	}
	else
	{
		// inactive banner, find another
		// if no banners fit this adlocation you'll have an endless loop !
		display_banners(location);
	}
	return;
}



/*************
	function refresh_banners()
	resets counters and active settings
*************/
function refresh_banners()
{
	if((refresh_counter == settings.refresh_max) || settings.refresh_time < 1)
	{
		clearInterval(banner_refresh);  
	}
	used = 0;
	for(j = 0; j < (banners.length); j++)
	{
		banners[j].active = 1;
	}

	for(j = 1; j < (location_counter+1); j++)
	{
		display_banners(j);
	}
	refresh_counter++;
}



// set timeout
var banner_refresh = window.setInterval(refresh_banners, settings.refresh_time);





























// swap image

function MM_preloadImages() { //v3.0
  var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
    var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
    if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
  var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
  var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
   if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}

function PopupPic(sPicURL) { 
     window.open( "popup.htm?"+sPicURL, "",  
     "resizable=1,HEIGHT=200,WIDTH=200"); 
}

function MM_nbGroup(event, grpName) { //v3.0
  var i,img,nbArr,args=MM_nbGroup.arguments;
  if (event == "init" && args.length > 2) {
    if ((img = MM_findObj(args[2])) != null && !img.MM_init) {
      img.MM_init = true; img.MM_up = args[3]; img.MM_dn = img.src;
      if ((nbArr = document[grpName]) == null) nbArr = document[grpName] = new Array();
      nbArr[nbArr.length] = img;
      for (i=4; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
        if (!img.MM_up) img.MM_up = img.src;
        img.src = img.MM_dn = args[i+1];
        nbArr[nbArr.length] = img;
    } }
  } else if (event == "over") {
    document.MM_nbOver = nbArr = new Array();
    for (i=1; i < args.length-1; i+=3) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = (img.MM_dn && args[i+2]) ? args[i+2] : args[i+1];
      nbArr[nbArr.length] = img;
    }
  } else if (event == "out" ) {
    for (i=0; i < document.MM_nbOver.length; i++) {
      img = document.MM_nbOver[i]; img.src = (img.MM_dn) ? img.MM_dn : img.MM_up; }
  } else if (event == "down") {
    if ((nbArr = document[grpName]) != null)
      for (i=0; i < nbArr.length; i++) { img=nbArr[i]; img.src = img.MM_up; img.MM_dn = 0; }
    document[grpName] = nbArr = new Array();
    for (i=2; i < args.length-1; i+=2) if ((img = MM_findObj(args[i])) != null) {
      if (!img.MM_up) img.MM_up = img.src;
      img.src = img.MM_dn = args[i+1];
      nbArr[nbArr.length] = img;
  } }
}

function MM_openBrWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features);
}