//Featured Content Glider: By http://www.dynamicdrive.com
//Created: Dec 22nd, 07'
//Updated (Jan 29th, 08): Added four possible slide directions: "updown", "downup", "leftright", or "rightleft"
//Updated (Feb 1st, 08): Changed glide behavior to reverse direction when previous button is clicked
//Updated (Feb 12th, 08): Added ability to retrieve gliding contents from an external file using Ajax ("remotecontent" variable added to configuration)
var featuredcontentglider={
	csszindex: 100,
	ajaxloadingmsg: '<b>Cargando contenidos, por favor espere...</b>',
	glide:function(config, showpage, isprev){
		var selected=parseInt(showpage)
		if (selected>=config.$contentdivs.length){
			//alert("No content exists at page "+(selected+1)+"! Loading 1st page instead.")
			selected=0
		}
		var $target=config.$contentdivs.eq(selected)
		if (config.$togglerdiv.attr('lastselected')==null || parseInt(config.$togglerdiv.attr('lastselected'))!=selected){
			var $selectedlink=config.$toc.eq(selected)
			config.$next.attr('loadpage', (selected<config.$contentdivs.length-1)? selected+1+'pg' : 0+'pg')
			config.$prev.attr('loadpage', (selected==0)? config.$contentdivs.length-1+'pg' : selected-1+'pg')
			var startpoint=(isprev=="previous")? -config.startpoint : config.startpoint
			$target.css(config.leftortop, startpoint).css("zIndex", this.csszindex++) 
			var endpoint=(config.leftortop=="left")? {left:0} : {top:0} 
			$target.animate(endpoint, config.speed)
			config.$toc.removeClass('selected')
			$selectedlink.addClass('selected')
			config.$togglerdiv.attr('lastselected', selected+'pg')
		}
	},
	getremotecontent:function(config){
		config.$glider.html(this.ajaxloadingmsg)
		$.ajax({
			url: config.remotecontent,
			error:function(ajaxrequest){
				config.$glider.html('Error cargando el contenido.<br />'+ajaxrequest.responseText)
			},
			success:function(content){
				config.$glider.html(content)
				featuredcontentglider.setuptoggler(config)
			}
		})
	},
	aligncontents:function(config){
		config.$contentdivs=$("#"+config.gliderid+" ."+config.contentclass)
		config.$contentdivs.css(config.leftortop, config.startpoint).css({height: config.$glider.height(), visibility: 'visible'}) 
	},
	setuptoggler:function(config){
		this.aligncontents(config)
		config.$togglerdiv.hide()
		config.$toc.each(function(index){
				$(this).attr('pagenumber', index+'pg')
				if (index > (config.$contentdivs.length-1))
					$(this).css({display: 'none'})
		})
		var $nextandprev=$("#"+config.togglerid+" .next, #"+config.togglerid+" .prev")
		$nextandprev.click(function(event){
			featuredcontentglider.glide(config, this.getAttribute('loadpage'), this.getAttribute('buttontype'))
			event.preventDefault()
		})
		config.$toc.click(function(event){
			featuredcontentglider.glide(config, this.getAttribute('pagenumber'))
			event.preventDefault()
		})
		config.$togglerdiv.fadeIn(1000, function(){
			featuredcontentglider.glide(config, config.selected)
			if (config.autorotate==true){
				config.stepcount=0
				config.totalsteps=config.$contentdivs.length*config.autorotateconfig[1] 
				featuredcontentglider.autorotate(config)
			}
		})
		config.$togglerdiv.click(function(){
			featuredcontentglider.cancelautorotate(config.togglerid)
		})
	},
	autorotate:function(config){
		var rotatespeed=config.speed+config.autorotateconfig[0]
		window[config.togglerid+"timer"]=setInterval(function(){
			if (config.totalsteps>0 && config.stepcount>=config.totalsteps){
				clearInterval(window[config.togglerid+"timer"])
			}
			else{
				config.$next.click()
				config.stepcount++
			}
		}, rotatespeed)
	},
	cancelautorotate:function(togglerid){
		if (window[togglerid+"timer"])
			clearInterval(window[togglerid+"timer"])
	},
	getCookie:function(Name){ 
		var re=new RegExp(Name+"=[^;]+", "i") 
		if (document.cookie.match(re)) 
			return document.cookie.match(re)[0].split("=")[1] 
		return null
	},
	setCookie:function(name, value){
		document.cookie = name+"="+value
	},
	init:function(config){
		$(document).ready(function(){
			config.$glider=$("#"+config.gliderid)
			config.$togglerdiv=$("#"+config.togglerid)
			config.$toc=config.$togglerdiv.children('.toc')
			config.$next=config.$togglerdiv.children('.next')
			config.$prev=config.$togglerdiv.children('.prev')
			config.$prev.attr('buttontype', 'previous')
			var selected=(config.persiststate)? featuredcontentglider.getCookie(config.gliderid) : config.selected
			config.selected=(isNaN(parseInt(selected))) ? config.selected : selected 
			config.leftortop=(/up/i.test(config.direction))? "top" : "left" 
			config.heightorwidth=(/up/i.test(config.direction))? config.$glider.height() : config.$glider.width() 
			config.startpoint=(/^(left|up)/i.test(config.direction))? -config.heightorwidth : config.heightorwidth 
			if (typeof config.remotecontent!="undefined" && config.remotecontent.length>0)
				featuredcontentglider.getremotecontent(config)
			else
				featuredcontentglider.setuptoggler(config)
			$(window).bind('unload', function(){ 
				config.$togglerdiv.unbind('click')
				config.$toc.unbind('click')
				config.$next.unbind('click')
				config.$prev.unbind('click')
				if (config.persiststate)
					featuredcontentglider.setCookie(config.gliderid, config.$togglerdiv.attr('lastselected'))
				config=null
			})
		})
	}
}