/**
    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

	Updates to enable pop-up window use by Rob Schilperoort/MetricsBoard 2010
	

	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':			0,			//	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, popup window size),  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
// if you want the link to come up in a pop-up the last parameter should be the size in the x,y format, if left empty the link will open in the current window

var banners = [
	new banner('Download Marketing Whitepaper',	'http://www.metricsboard.com/whitepaper.html', 'http://www.metricsboard.com/banner-1.gif', 	'31/12/2099',	'banner1', ''),
	new banner('Branded Interface',	'http://www.metricsboard.com/partners.html', 'http://www.metricsboard.com/banner-2.gif', 	'31/12/2099',	'banner1', ''),
	new banner('Benchmark Services',	'http://www.metricsboard.com/benchmark.html', 'http://www.metricsboard.com/banner-3.gif', 	'31/12/2099',	'banner1', ''),
	new banner('Invite a Friend',	'http://survey.metricsboard.com/refer_a_friend.php', 'http://www.metricsboard.com/banner-4.gif', 	'31/12/2099',	'banner1', ''),
	new banner('Web 2.0 Benchmark',	'http://survey.metricsboard.com/survey.php?short_name=Web2.0', 'http://www.metricsboard.com/banner-6.gif', 	'31/12/2099',	'banner1', '820, 600'),
	new banner('Sales Benchmark',	'http://survey.metricsboard.com/survey.php?short_name=Sales', 'http://www.metricsboard.com/banner-7.gif', 	'31/12/2099',	'banner1', '800, 600'),
	new banner('IT Infrastructure Benchmark',	'http://survey.metricsboard.com/survey.php?short_name=ITI', 'http://www.metricsboard.com/banner-9.gif', 	'31/12/2099',	'banner1', '820, 600'),
	new banner('Crowd verified definition',	'http://www.metricsboard.com/company.html', 'http://www.metricsboard.com/banner-10.gif', 	'31/12/2099',	'banner1', '')
]

//         				There is no need to edit below here
///////////////////////////////////////////////////////////////////////////////////
var used=0;var location_counter=0;var refresh_counter=1;var map=new Array();

function wopen(url, name, w, h)
{
// Fudge factors for window decoration space.
 // In my tests these work well on all platforms & browsers.
w += 32;
h += 96;
 var win = window.open(url,
  name, 
  'width=' + w + ', height=' + h + ', ' +
  'location=no, menubar=no, ' +
  'status=no, toolbar=no, scrollbars=yes, resizable=yes');
 win.resizeTo(w, h);
 win.focus();
}

function banner(a,b,c,d,e,f)
{
	this.name=a;
	this.url=b;
	this.image=c;
	this.date=d;
	this.active=1;
	this.oid=0;

	if(e!='')
		{this.loc=e}
	else
		{this.loc=settings.default_ad_loc}

	this.window=f
}

function show_banners(a)
{
	location_counter=location_counter+1;
	if(a!=''&&a!=undefined)
		{map[location_counter]=a}
	else
		{map[location_counter]=settings.default_ad_loc}

	var b='<div id="'+settings.location_prefix+location_counter+'" class="'+settings.location_class+'"></div>';
	document.write(b);

	display_banners(location_counter)
}

function display_banners(a)
{
	var b=new Array();

	if(a==''||!a||a<0)
		{return}

	var c=banners.length;

	if((c==used)&&settings.duplicate_banners==0)
		{return}

	for(i=0;i<(banners.length);i++)
		{
			banners[i].oid=i;
			if((banners[i].loc==map[a])&&(banners[i].active==1))
				{b.push(banners[i])}
		}

	var d=Math.floor(Math.random()*b.length);
	var e=b[d];
	var f=(settings.force_size==1)?' width="'+settings.img_width+'" height="'+settings.img_height+'"':'';
	if (e.window=='')
		{
			var g='<a href="'+e.url+'" title="'+e.name+'" target="'+settings.window+'"><img border="0" src="'+e.image+'"'+f+' alt="'+e.name+'" /></a>';
		}
	else
		{
			var g='<a href="#" title="'+e.name+'" onClick="wopen(\''+e.url+'\', \'popup\', '+e.window+'); return false;"><img border="0" src="'+e.image+'"'+f+' alt="'+e.name+'" /></a>';
		}
	var h=new Date();
	var j=e.date;
	j=j.split('/',3);
	var k=new Date();
	k.setFullYear(parseInt(j[2]),parseInt(j[1])-1,parseInt(j[0]));
	if((h<k)&&e.active==1)
		{
			var l=document.getElementById(settings.location_prefix+a);
			if(l==null)
				{alert('Webmaster banner rotator\nError: adLocation doesn\'t exist!')}
			else
				{
					l.innerHTML=g;
					if(settings.duplicate_banners==0)
						{
							banners[e.oid].active=0;
							used++
						}
					return
				}
		}
	else
		{display_banners(a)}
	return
}

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++
}

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