var fadecontentviewer={
	csszindex: 100,
	fade:function($allcontents, togglerid, selected, speed)
		{
		//alert($allcontents+"-"+ togglerid+"-"+ selected+"-"+ speed);
		var selected=parseInt(selected)
		var $togglerdiv=$("#"+togglerid)
			
		var $target=$allcontents.eq(selected)
			
		if ($target.length==0){ 
			alert("No content exists at page number "+selected+"!")
			return 
		}
		if ($togglerdiv.attr('lastselected')==null || parseInt($togglerdiv.attr('lastselected'))!=selected)
		{
			var lastDivId=document.getElementById($togglerdiv.attr('lastselected'));
				lastDivId.style.display="none";
			
			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++, visibility: 'visible'})
			$target.hide()
			$target.fadeIn(speed)
			$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")

		$next.mouseover(function(){
			fadecontentviewer.fade($allcontents, togglerid, $(this).attr('nextpage'), speed)
			return false
		})
		$prev.mouseover(function(){
			fadecontentviewer.fade($allcontents, togglerid, $(this).attr('previouspage'), speed)
				alert($(this).attr('previouspage'))
			return false
		})
		$toc.mouseover(function(){
			fadecontentviewer.fade($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)
				//alert($fadecontents +" togid="+ togglerid+" sele="+ selected+" speed="+ speed)
			setTimeout(function(){fadecontentviewer.fade($fadecontents, togglerid, selected, speed)}, 100)
			$(window).bind('unload', function()
			{ 
				
				$("#"+togglerid+" .toc").unbind('mouseover')
				$("#"+togglerid+" .next", "#"+togglerid+" .prev").unbind('mouseover')
			})
		})
	}
}