var fadecontentviewer={

	csszindex: 1,

	fade:function($allcontents, togglerid, selected, speed){
		
		var selected=parseInt(selected)

		var $togglerdiv=$("#"+togglerid)

		var $previous = $allcontents.eq(parseInt($togglerdiv.attr('lastselected')))
		
		var $target=$allcontents.eq(selected)

		if ($target.length==0){ //if no content exists at this index position (ie: stemming from redundant pagination link)

			alert("No content exists at page number "+selected+"!")

			return 

		}

		if ($togglerdiv.attr('lastselected')==null || parseInt($togglerdiv.attr('lastselected'))!=selected){
			
			var $toc=$("#"+togglerid+" .toc")

			var $selectedlink=$toc.eq(selected)
						

			$("#"+togglerid+" .next").attr('nextpage', (selected<$allcontents.length-1)? selected+1+'pg' : 0+'pg')

			$("#"+togglerid+" .prev").attr('previouspage', (selected==0)? $allcontents.length-1+'pg' : selected-1+'pg')
	
			$target.css({zIndex: this.csszindex = 2, visibility: 'visible'})
			
			$previous.css({zIndex: this.csszindex = 1, visibility: 'visible'})

			$target.hide()

			$target.fadeIn(speed)
			
			for(var i = 0; i < $allcontents.length; i++) {
				if(i == selected || i == parseInt($togglerdiv.attr('lastselected')))
				{}
				else {
					$allcontents.eq(i).css({zIndex: this.csszindex = 0, visibility: 'visible'})
				}
			}
			
			$toc.csszindex = 0;

			$toc.removeClass('selected')

			$selectedlink.addClass('selected')

			$togglerdiv.attr('lastselected', selected+'pg')

		}

	},



	setuptoggler:function($allcontents, togglerid, speed){

		var $toc=$("#"+togglerid+" .toc")

		$toc.each(function(index){

				$(this).attr('pagenumber', index+'pg')

		})

		

		var $next=$("#"+togglerid+" .next")

		var $prev=$("#"+togglerid+" .prev")

		$next.click(function(){

			fadecontentviewer.fade($allcontents, togglerid, $(this).attr('nextpage'), speed)

			return false

		})

		$prev.click(function(){

			fadecontentviewer.fade($allcontents, togglerid, $(this).attr('previouspage'), speed)

			return false

		})

		$toc.click(function(){

			fadecontentviewer.fade($allcontents, togglerid, $(this).attr('pagenumber'), speed)

			return false

		})

	},



	init:function(fadeid, contentclass, togglerid, selected, speed){

		$(document).ready(function(){

			var faderheight=$("#"+fadeid).height()

			var $fadecontents=$("#"+fadeid+" ."+contentclass)

			$fadecontents.css({top: 0, left: 0, height: faderheight, visibility: 'hidden'})

			fadecontentviewer.setuptoggler($fadecontents, togglerid, speed)

			setTimeout(function(){fadecontentviewer.fade($fadecontents, togglerid, selected, speed)}, 100)

			$(window).bind('unload', function(){ //clean up

				$("#"+togglerid+" .toc").unbind('click')

				$("#"+togglerid+" .next", "#"+togglerid+" .prev").unbind('click')

			})

		})

	}

}