(function($){var $background=$('<img />').addClass('vegas-background'),$overlay=$('<div />').addClass('vegas-overlay'),$loading=$('<div />').addClass('vegas-loading'),$current=$(),paused=null,backgrounds=[],step=0,timer,methods={init:function(settings){var options={src:getBackground(),align:'center',valign:'center',fade:0,loading:true,load:function(){},complete:function(){}}
$.extend(options,$.vegas.defaults.background,settings);if(options.loading){loading();}
$new=$background.clone();$new.css({'position':'fixed','left':'0px','top':'0px'}).load(function(){$(window).bind('resize.vegas',function(e){resize($new,options);});if($current.is('img')){$current.stop();$new.hide().insertAfter($current).fadeIn(options.fade,function(){$('.vegas-background').not(this).remove();$('body').trigger('vegascomplete',[this,step-1]);options.complete.apply($new,[step-1]);});}else{$new.hide().prependTo('body').fadeIn(options.fade,function(){$('body').trigger('vegascomplete',[this,step-1]);options.complete.apply(this,[step-1]);});}
$current=$new;resize($current,options);if(options.loading){loaded();}
$('body').trigger('vegasload',[$current.get(0),step-1]);options.load.apply($current.get(0),[step-1]);if(step){$('body').trigger('vegaswalk',[$current.get(0),step-1]);options.walk.apply($current.get(0),[step-1]);}}).attr('src',options.src);return $.vegas;},destroy:function(what){if(!what||what=='background'){$('.vegas-background, .vegas-loading').remove();$(window).unbind('resize.vegas');$current=null;}
if(what=='overlay'){$('.vegas-overlay').remove();}
return $.vegas;},overlay:function(settings){var options={src:null,opacity:null};$.extend(options,$.vegas.defaults.overlay,settings);$overlay.remove();$overlay.css({'margin':'0','padding':'0','position':'fixed','left':'0px','top':'0px','width':'100%','height':'100%'});if(options.src){$overlay.css('backgroundImage','url('+options.src+')');}
if(options.opacity){$overlay.css('opacity',options.opacity);}
$overlay.prependTo('body');return $.vegas;},slideshow:function(settings,keepPause){var options={step:step,delay:5000,preload:false,backgrounds:backgrounds,walk:function(){}};options=$.extend({},$.vegas.defaults.slideshow,options,settings);if(options.backgrounds!=backgrounds){if(!settings.step){options.step=0;}
if(options.preload){$.vegas('preload',options.backgrounds)}}
backgrounds=options.backgrounds;step=options.step;clearInterval(timer);if(!backgrounds.length){return $.vegas;}
var doSlideshow=function(){if(step<0){step=backgrounds.length-1;}
if(step>=backgrounds.length||!backgrounds[step-1]){step=0;}
var settings=backgrounds[step++];settings.walk=options.walk;$.vegas(settings);}
doSlideshow();if(!keepPause){paused=false;$('body').trigger('vegasstart',[$current.get(0),step-1]);}
if(!paused){timer=setInterval(doSlideshow,options.delay);}
return $.vegas;},next:function(){var from=step;if(step){$.vegas('slideshow',{step:step},true);$('body').trigger('vegasnext',[$current.get(0),step-1,from-1]);}
return $.vegas;},previous:function(){var from=step;if(step){$.vegas('slideshow',{step:step-2},true);$('body').trigger('vegasprevious',[$current.get(0),step-1,from-1]);}
return $.vegas;},jump:function(s){var from=step;if(step){$.vegas('slideshow',{step:s},true);$('body').trigger('vegasjump',[$current.get(0),step-1,from-1]);}
return $.vegas;},stop:function(){var from=step;step=0;paused=null;clearInterval(timer);$('body').trigger('vegasstop',[$current.get(0),from-1]);return $.vegas;},pause:function(){paused=true;clearInterval(timer);$('body').trigger('vegaspause',[$current.get(0),step-1]);return $.vegas;},get:function(what){if(what==null||what=='background'){return $current.get(0);}
if(what=='overlay'){return $overlay.get(0);}
if(what=='step'){return step-1;}
if(what=='paused'){return paused;}},preload:function(backgrounds){for(var i in backgrounds){if(backgrounds[i].src){$('<img src="'+backgrounds[i].src+'">');}}
return $.vegas;}}
function resize($img,settings){var options={align:'center',valign:'center'}
$.extend(options,settings);var ww=$(window).width(),wh=$(window).height(),iw=$img.width(),ih=$img.height(),rw=wh/ww,ri=ih/iw,newWidth,newHeight,newLeft,newTop,properties;if(rw>ri){newWidth=wh/ri;newHeight=wh;}else{newWidth=ww;newHeight=ww*ri;}
properties={'width':newWidth+'px','height':newHeight+'px','top':'auto','bottom':'auto','left':'auto','right':'auto'}
if(!isNaN(parseInt(options.valign))){properties['top']=(0-(newHeight-wh)/100*parseInt(options.valign))+'px';}else if(options.valign=='top'){properties['top']=0;}else if(options.valign=='bottom'){properties['bottom']=0;}else{properties['top']=(wh-newHeight)/2;}
if(!isNaN(parseInt(options.align))){properties['left']=(0-(newWidth-ww)/100*parseInt(options.align))+'px';}else if(options.align=='left'){properties['left']=0;}else if(options.align=='right'){properties['right']=0;}else{properties['left']=(ww-newWidth)/2;}
$img.css(properties);}
function loading(){$loading.prependTo('body').fadeIn();}
function loaded(){$loading.fadeOut('fast',function(){$(this).remove();});}
function getBackground(){if($('body').css('backgroundImage')){return $('body').css('backgroundImage').replace(/url\("?(.*?)"?\)/i,'$1');}}
$.vegas=function(method){if(methods[method]){return methods[method].apply(this,Array.prototype.slice.call(arguments,1));}else if(typeof method==='object'||!method){return methods.init.apply(this,arguments);}else{$.error('Method '+method+' does not exist');}};$.vegas.defaults={background:{},slideshow:{},overlay:{}}})(jQuery);