/* - ++resource++plonetheme.bradford.javascripts/slideshow.js - */
// http://www.bradfordhospitals.nhs.uk/portal_javascripts/++resource++plonetheme.bradford.javascripts/slideshow.js?original=1
jQuery.fn.slideshow=function(options){var settings={timeout:'2000',type:'sequence',pauselink:null,playcallback:null,pausecallback:null}
if(options)
jQuery.extend(settings,options);var pauseState=0;var current=1;var last=0;var timer='';var change=function(){if(pauseState==0){for(var i=0;i<slides.length;i++){jQuery(slides[i]).css('display','none')}
jQuery(slides[last]).css('display','block').css('zIndex','0');jQuery(slides[current]).css('zIndex','1').fadeIn('slow');if(settings.type=='sequence'){if((current+1)<slides.length){current=current+1;last=current-1}
else{current=0;last=slides.length-1}}
else if(settings.type=='random'){last=current;while(current==last){current=Math.floor(Math.random() *(slides.length))}}
else{alert('type must either be \'sequence\' or \'random\'')}
timer=setTimeout(change,settings.timeout)}}
var pause=function(){if(pauseState==0){pauseState=1;clearTimeout(timer);if(settings.playcallback!=null){settings.pausecallback(jQuery('#'+settings.pauselink))}}
else{pauseState=0;change();if(settings.playcallback!=null){settings.playcallback(jQuery('#'+settings.pauselink))}}
return false}
this.css('position','relative');var slides=this.find('img').get();jQuery.each(slides, function(i){jQuery(slides[i]).css('zIndex',slides.length-i).css('position','absolute').css('top','0').css('left','0')});if(settings.type=='sequence'){timer=setTimeout(change,settings.timeout)}
else if(settings.type=='random'){do{current=Math.floor(Math.random() *(slides.length))} while(current==0)
timer=setTimeout(change,settings.timeout)}
else{alert('type must either be \'sequence\' or \'random\'')}
if(settings.pauselink!=null){jQuery('#'+settings.pauselink).click(pause)}
return this};