$(document).ready(function(){
	
	var getLinks = document.getElementsByTagName("a");
	var scrollSpeed = 1000; // Ställ in scrollhastigheten i millisekunder
	
	var H1_7B_ID = 1;
	var H1_7B_ID_page = 1;
	
	var H1_5B_ID = 1;
	var H1_5B_ID_page = 1;
	
	var H1_5B_ID2 = 1;
	var H1_5B_ID2_page = 1;
	
	var H1_5B_ID3 = 1;
	var H1_5B_ID3_page = 1;
	
	var H1_5B_ID4 = 1;
	var H1_5B_ID4_page = 1;
	
	var H1_5B_ID5 = 1;
	var H1_5B_ID5_page = 1;
	
	var H1_5B_ID6 = 1;
	var H1_5B_ID6_page = 1;
	
	var H1_5B_ID7 = 1;
	var H1_5B_ID7_page = 1;
	
	var documentById_jon =  document.getElementById("H1_5B_ID");
	
	
	var numOfBooks = 5;
	
	if(documentById_jon != null){
		numOfBooks = documentById_jon.getElementsByTagName("img").length - 3;
	}
	

	
	var pages = Math.ceil(numOfBooks / 5);
	
	if(numOfBooks<6){
		$("#H1_5B_ID .nextPage").hide();
	}
	
	$("#H1_7B_ID .prevPage").hide();
	$("#H1_5B_ID .prevPage").hide();
	$("#H1_5B_ID2 .prevPage").hide();
	$("#H1_5B_ID3 .prevPage").hide();
	$("#H1_5B_ID4 .prevPage").hide();
	$("#H1_5B_ID5 .prevPage").hide();
	$("#H1_5B_ID6 .prevPage").hide();
	$("#H1_5B_ID7 .prevPage").hide();
	
	$(".nextPage").click(function(){

		var bookholder = document.getElementById(this.getAttribute("name"));
		
		if(this.getAttribute("name") == "H1_7B_ID"){
			
			var numOfBooks = document.getElementById("H1_7B_ID").getElementsByTagName("img").length - 3;
			var pages = Math.ceil(numOfBooks / 7);
			
			
			if (H1_7B_ID_page < pages) {	
			
			
				$("#H1_7B_ID .items").animate({
				
					marginLeft: -900 * H1_7B_ID
				
				}, scrollSpeed)
				
				H1_7B_ID_page++;
				H1_7B_ID++;
				
			}else{
				H1_7B_ID_page = H1_7B_ID_page;
				H1_7B_ID = H1_7B_ID;
			}
			
			
			if(H1_7B_ID_page == pages){
				$("#H1_7B_ID .nextPage").hide();
			}
			
			if(H1_7B_ID_page > 1){
				$("#H1_7B_ID .prevPage").show();
			}
			
					
		}
		
		if(this.getAttribute("name") == "H1_5B_ID"){
			
			var numOfBooks = document.getElementById("H1_5B_ID").getElementsByTagName("img").length;
			var pages = numOfBooks / 5;
			
			
			
			if (H1_5B_ID_page < pages) {
			
				$("#H1_5B_ID .items").animate({
				
					marginLeft: -640 * H1_5B_ID
				
				}, scrollSpeed)
				
				H1_5B_ID_page++;
				H1_5B_ID++;
				
			}else{
				H1_5B_ID_page = H1_5B_ID_page;
				H1_5B_ID = H1_5B_ID;
			}
			
			
						
			if(H1_5B_ID_page < pages-1){
				$("#H1_5B_ID .nextPage").show();
			}
			
			
		
			
			if(H1_5B_ID_page == pages){
				$("#H1_5B_ID .nextPage").hide();
			}
	
			
			if(H1_5B_ID_page > 1){
				$("#H1_5B_ID .prevPage").show();
			}
					
		}
		
		if(this.getAttribute("name") == "H1_5B_ID2"){
			
			var numOfBooks = document.getElementById("H1_5B_ID2").getElementsByTagName("img").length;
			var pages = Math.ceil(numOfBooks / 5);
			
		
			
			
			if (H1_5B_ID2_page < pages) {
			
			
			
				$("#H1_5B_ID2 .items").animate({
				
					marginLeft: -640 * H1_5B_ID2
				
				}, scrollSpeed)
				
				H1_5B_ID2_page++;
				H1_5B_ID2++;
				
			}else{
				H1_5B_ID2_page = H1_5B_ID2_page;
				H1_5B_ID2 = H1_5B_ID2;
			}
			
				if(H1_5B_ID2_page < pages-1){
				$("#H1_5B_ID2 .nextPage").show();
			}
			
			
			if(H1_5B_ID2_page == pages){
				$("#H1_5B_ID2 .nextPage").hide();
			}
			
			
			if(H1_5B_ID2_page > 1){
				$("#H1_5B_ID2 .prevPage").show();
			}
					
		}
		
		if(this.getAttribute("name") == "H1_5B_ID3"){
			
			var numOfBooks = document.getElementById("H1_5B_ID3").getElementsByTagName("img").length;
			var pages = Math.ceil(numOfBooks / 5);
			
		
			if (H1_5B_ID3_page < pages) {
			
				$("#H1_5B_ID3 .items").animate({
				
					marginLeft: -640 * H1_5B_ID3
				
				}, scrollSpeed)
				
				H1_5B_ID3_page++;
				H1_5B_ID3++;
				
			}else{
				H1_5B_ID3_page = H1_5B_ID3_page;
				H1_5B_ID3 = H1_5B_ID3;
			}
			
			
			
			if(H1_5B_ID3_page < pages){
				$("#H1_5B_ID3 .nextPage").show();
			}
			
			if(H1_5B_ID3_page == pages){
				$("#H1_5B_ID3 .nextPage").hide();
			}
			
		
			
			if(H1_5B_ID3_page > 1){			
				$("#H1_5B_ID3 .prevPage").show();			
			}
			
			
					
		}
		
		if(this.getAttribute("name") == "H1_5B_ID4"){
			
			var numOfBooks = document.getElementById("H1_5B_ID4").getElementsByTagName("img").length;
			var pages = Math.ceil(numOfBooks / 5);
			
			
			if (H1_5B_ID4_page < pages) {
			
				$("#H1_5B_ID4 .items").animate({
				
					marginLeft: -640 * H1_5B_ID4
				
				}, scrollSpeed)
				
				H1_5B_ID4_page++;
				H1_5B_ID4++;
				
			}else{
				H1_5B_ID4_page = H1_5B_ID4_page;
				H1_5B_ID4 = H1_5B_ID4;
			}
			
			if(H1_5B_ID4_page < pages-1){
				$("#H1_5B_ID4 .nextPage").show();
			}
			
			if(H1_5B_ID4_page == pages){
				$("#H1_5B_ID4 .nextPage").hide();
			}
			
			
			
			if(H1_5B_ID4_page > 1){
				$("#H1_5B_ID4 .prevPage").show();
			}
					
		}
		
		if(this.getAttribute("name") == "H1_5B_ID5"){
			
			var numOfBooks = document.getElementById("H1_5B_ID5").getElementsByTagName("img").length - 3;
			var pages = Math.ceil(numOfBooks / 5);
			
			
			if (H1_5B_ID5_page < pages) {
			
				$("#H1_5B_ID5 .items").animate({
				
					marginLeft: -640 * H1_5B_ID5
				
				}, scrollSpeed)
				
				H1_5B_ID5_page++;
				H1_5B_ID5++;
				
			}else{
				H1_5B_ID5_page = H1_5B_ID5_page;
				H1_5B_ID5 = H1_5B_ID5;
			}
			
			if(H1_5B_ID5_page < pages-1){
				$("#H1_5B_ID5 .nextPage").show();
			}
			
			if(H1_5B_ID5_page == pages){
				$("#H1_5B_ID5 .nextPage").hide();
			}
			
			
			
			if(H1_5B_ID5_page > 1){
				$("#H1_5B_ID5 .prevPage").show();
			}
					
		}
		
		if(this.getAttribute("name") == "H1_5B_ID6"){
			
			var numOfBooks = document.getElementById("H1_5B_ID6").getElementsByTagName("img").length - 3;
			var pages = Math.ceil(numOfBooks / 5);
			
			
			if (H1_5B_ID6_page < pages) {
			
				$("#H1_5B_ID6 .items").animate({
				
					marginLeft: -640 * H1_5B_ID6
				
				}, scrollSpeed)
				
				H1_5B_ID6_page++;
				H1_5B_ID6++;
				
			}else{
				H1_5B_ID6_page = H1_5B_ID6_page;
				H1_5B_ID6 = H1_5B_ID6;
			}
			
			
			if(H1_5B_ID6_page < pages-1){
				$("#H1_5B_ID6 .nextPage").show();
			}
			
			if(H1_5B_ID6_page == pages){
				$("#H1_5B_ID6 .nextPage").hide();
			}
			
			
			
			if(H1_5B_ID6_page > 1){
				$("#H1_5B_ID6 .prevPage").show();
			}
					
		}
		
		
		
	});
	
	
	$(".prevPage").click(function(){
		
		var bookholder = document.getElementById(this.getAttribute("name"));
		
		if(this.getAttribute("name") == "H1_7B_ID"){
			
			var numOfBooks = document.getElementById("H1_7B_ID").getElementsByTagName("img").length - 3;
			var pages = Math.ceil(numOfBooks / 7);
			
			if (H1_7B_ID_page != 1) {
			
				H1_7B_ID--;
			
				$("#H1_7B_ID .items").animate({
				
					marginLeft: (-900 * H1_7B_ID) + 900
				
				}, scrollSpeed)
				
				H1_7B_ID_page--;
			}
			
			
			
			
			if(H1_7B_ID_page < pages){
				$("#H1_7B_ID .nextPage").show();
			}
			
			if(H1_7B_ID_page == 1){
				$("#H1_7B_ID .prevPage").hide();
			}
			
		}
		
		if(this.getAttribute("name") == "H1_5B_ID"){
			
			var numOfBooks = document.getElementById("H1_5B_ID").getElementsByTagName("img").length - 3;
			var pages = Math.ceil(numOfBooks / 5);
			
			if (H1_5B_ID_page != 1) {
			
				H1_5B_ID--;
			
				$("#H1_5B_ID .items").animate({
				
					marginLeft: (-640 * H1_5B_ID) + 640
				
				}, scrollSpeed)
				
				H1_5B_ID_page--;
			}
			
			
			if(H1_5B_ID_page < pages-1){
				$("#H1_5B_ID .nextPage").show();
			}
			
			if(H1_5B_ID_page < pages){
				$("#H1_5B_ID .nextPage").show();
			}
			
			if(H1_5B_ID_page == 1){
				$("#H1_5B_ID .prevPage").hide();
			}
		}
		
		if(this.getAttribute("name") == "H1_5B_ID2"){
			
			var numOfBooks = document.getElementById("H1_5B_ID2").getElementsByTagName("img").length - 3;
			var pages = Math.ceil(numOfBooks / 5);
			
			if (H1_5B_ID2_page != 1) {
			
				H1_5B_ID2--;
			
				$("#H1_5B_ID2 .items").animate({
				
					marginLeft: (-640 * H1_5B_ID2) + 640
				
				}, scrollSpeed)
				
				H1_5B_ID2_page--;
			}
			
			if(H1_5B_ID2_page < pages-1){
				$("#H1_5B_ID2 .nextPage").show();
			}
			
			if(H1_5B_ID2_page < pages){
				$("#H1_5B_ID2 .nextPage").show();
			}
			
			if(H1_5B_ID2_page == 1){
				$("#H1_5B_ID2 .prevPage").hide();
			}	
		}
		
		if(this.getAttribute("name") == "H1_5B_ID3"){
			
			var numOfBooks = document.getElementById("H1_5B_ID3").getElementsByTagName("img").length - 3;
			var pages = Math.ceil(numOfBooks / 5);
			
			if (H1_5B_ID3_page != 1) {
			
				H1_5B_ID3--;
			
				$("#H1_5B_ID3 .items").animate({
				
					marginLeft: (-640 * H1_5B_ID3) + 640
				
				}, scrollSpeed)
				
				H1_5B_ID3_page--;
			}
			
			if(H1_5B_ID3_page < pages-1){
				$("#H1_5B_ID3 .nextPage").show();
			}
			
			if(H1_5B_ID3_page < pages){
				$("#H1_5B_ID3 .nextPage").show();
			}
			
			if(H1_5B_ID3_page == 1){
				$("#H1_5B_ID3 .prevPage").hide();
			}
		}
		
		if(this.getAttribute("name") == "H1_5B_ID4"){
			
			var numOfBooks = document.getElementById("H1_5B_ID4").getElementsByTagName("img").length - 3;
			var pages = Math.ceil(numOfBooks / 5);
			
			if (H1_5B_ID4_page != 1) {
			
				H1_5B_ID4--;
			
				$("#H1_5B_ID4 .items").animate({
				
					marginLeft: (-640 * H1_5B_ID4) + 640
				
				}, scrollSpeed)
				
				H1_5B_ID4_page--;
			}
			
			if(H1_5B_ID4_page < pages-1){
				$("#H1_5B_ID4 .nextPage").show();
			}
			
			if(H1_5B_ID4_page < pages){
				$("#H1_5B_ID4 .nextPage").show();
			}
			
			if(H1_5B_ID4_page == 1){
				$("#H1_5B_ID4 .prevPage").hide();
			}	
		}
		
		if(this.getAttribute("name") == "H1_5B_ID5"){
			
			var numOfBooks = document.getElementById("H1_5B_ID5").getElementsByTagName("img").length - 3;
			var pages = Math.ceil(numOfBooks / 5);
			
			if (H1_5B_ID5_page != 1) {
			
				H1_5B_ID5--;
			
				$("#H1_5B_ID5 .items").animate({
				
					marginLeft: (-640 * H1_5B_ID5) + 640
				
				}, scrollSpeed)
				
				H1_5B_ID5_page--;
			}
			
			
			if(H1_5B_ID5_page < pages-1){
				$("#H1_5B_ID5 .nextPage").show();
			}
			
			if(H1_5B_ID5_page < pages){
				$("#H1_5B_ID5 .nextPage").show();
			}
			
			if(H1_5B_ID5_page == 1){
				$("#H1_5B_ID5 .prevPage").hide();
			}	
		}
		
		if(this.getAttribute("name") == "H1_5B_ID6"){
			
			var numOfBooks = document.getElementById("H1_5B_ID6").getElementsByTagName("img").length - 3;
			var pages = Math.ceil(numOfBooks / 5);
			
			if (H1_5B_ID6_page != 1) {
			
				H1_5B_ID6--;
			
				$("#H1_5B_ID6 .items").animate({
				
					marginLeft: (-640 * H1_5B_ID6) + 640
				
				}, scrollSpeed)
				
				H1_5B_ID6_page--;
			}
			
			if(H1_5B_ID6_page < pages-1){
				$("#H1_5B_ID6 .nextPage").show();
			}
			
			if(H1_5B_ID6_page < pages){
				$("#H1_5B_ID6 .nextPage").show();
			}
			
			if(H1_5B_ID6_page == 1){
				$("#H1_5B_ID6 .prevPage").hide();
			}
		}
		
		
		if(this.getAttribute("name") == "H1_5B_ID7"){
			
			var numOfBooks = document.getElementById("H1_5B_ID7").getElementsByTagName("img").length - 3;
			var pages = Math.ceil(numOfBooks / 5);
			
			if (H1_5B_ID7_page != 1) {
			
				H1_5B_ID7--;
			
				$("#H1_5B_ID7 .items").animate({
				
					marginLeft: (-640 * H1_5B_ID6) + 640
				
				}, scrollSpeed)
				
				H1_5B_ID7_page--;
			}
			
			if(H1_5B_ID7_page < pages){
				$("#H1_5B_ID7 .nextPage").show();
			}
			
			if(H1_5B_ID7_page == 1){
				$("#H1_5B_ID7 .prevPage").hide();
			}
		}
		
	});
	
	
		$(".resetShelf").click(function(){
			
				var bookholder = document.getElementById(this.getAttribute("name"));
				
				if(this.getAttribute("name") == "H1_7B_ID"){
					
					var numOfBooks = document.getElementById("H1_7B_ID").getElementsByTagName("img").length - 3;
					var pages = Math.ceil(numOfBooks / 7);
					
					if (H1_7B_ID_page != 1) {
					
						H1_7B_ID=1;
					
						$("#H1_7B_ID .items").animate({
						
							marginLeft: (-896 * H1_7B_ID) + 896
						
						}, scrollSpeed)
						
						H1_7B_ID_page=1;
					}
				}
				
				if(this.getAttribute("name") == "H1_5B_ID"){
					
					var numOfBooks = document.getElementById("H1_5B_ID").getElementsByTagName("img").length - 3;
					var pages = Math.ceil(numOfBooks / 5);
					
					if (H1_5B_ID_page != 1) {
					
						H1_5B_ID=1;
					
						$("#H1_5B_ID .items").animate({
						
							marginLeft: (-640 * H1_5B_ID) + 640
						
						}, scrollSpeed)
						
						H1_5B_ID_page=1
					}	
					if(H1_5B_ID_page < pages){
						$("#H1_5B_ID .nextPage").show();
					}
					$("#H1_5B_ID .prevPage").hide();
				}
				
				if(this.getAttribute("name") == "H1_5B_ID2"){
					
					var numOfBooks = document.getElementById("H1_5B_ID2").getElementsByTagName("img").length - 3;
					var pages = Math.ceil(numOfBooks / 5);
					
					if (H1_5B_ID2_page != 1) {
					
						H1_5B_ID2=1;
					
						$("#H1_5B_ID2 .items").animate({
						
							marginLeft: (-640 * H1_5B_ID2) + 640
						
						}, scrollSpeed)
						
						H1_5B_ID2_page=1;
					}	
					if(H1_5B_ID2_page < pages){
						$("#H1_5B_ID2 .nextPage").show();
					}
					$("#H1_5B_ID2 .prevPage").hide();
				}
				
				if(this.getAttribute("name") == "H1_5B_ID3"){
					
					var numOfBooks = document.getElementById("H1_5B_ID3").getElementsByTagName("img").length - 3;
					var pages = Math.ceil(numOfBooks / 5);
					
					if (H1_5B_ID3_page != 1) {
					
						H1_5B_ID3=1;
					
						$("#H1_5B_ID3 .items").animate({
						
							marginLeft: (-640 * H1_5B_ID3) + 640
						
						}, scrollSpeed)
						
						H1_5B_ID3_page=1;
					}	
					if(H1_5B_ID3_page < pages){
						$("#H1_5B_ID3 .nextPage").show();
					}
					$("#H1_5B_ID3 .prevPage").hide();
				}
				
				if(this.getAttribute("name") == "H1_5B_ID4"){
					
					var numOfBooks = document.getElementById("H1_5B_ID4").getElementsByTagName("img").length - 3;
					var pages = Math.ceil(numOfBooks / 5);
					
					if (H1_5B_ID4_page != 1) {
					
						H1_5B_ID4=1;
					
						$("#H1_5B_ID4 .items").animate({
						
							marginLeft: (-640 * H1_5B_ID4) + 640
						
						}, scrollSpeed)
						
						H1_5B_ID4_page=1;
					}	
					if(H1_5B_ID4_page < pages){
						$("#H1_5B_ID4 .nextPage").show();
					}
					$("#H1_5B_ID4 .prevPage").hide();
				}
				
				if(this.getAttribute("name") == "H1_5B_ID5"){
					
					var numOfBooks = document.getElementById("H1_5B_ID5").getElementsByTagName("img").length - 3;
					var pages = Math.ceil(numOfBooks / 5);
					
					if (H1_5B_ID5_page != 1) {
					
						H1_5B_ID5=1;
					
						$("#H1_5B_ID5 .items").animate({
						
							marginLeft: (-640 * H1_5B_ID5) + 640
						
						}, scrollSpeed)
						
						H1_5B_ID5_page=1;
					}
					if(H1_5B_ID5_page < pages){
						$("#H1_5B_ID5 .nextPage").show();
					}
					$("#H1_5B_ID5 .prevPage").hide();
				}
				
				if(this.getAttribute("name") == "H1_5B_ID6"){
					
					var numOfBooks = document.getElementById("H1_5B_ID6").getElementsByTagName("img").length - 3;
					var pages = Math.ceil(numOfBooks / 5);
					
					if (H1_5B_ID6_page != 1) {
					
						H1_5B_ID6=1;
					
						$("#H1_5B_ID6 .items").animate({
						
							marginLeft: (-640 * H1_5B_ID6) + 640
						
						}, scrollSpeed)
						
						H1_5B_ID6_page=1;
					}
					if(H1_5B_ID6_page < pages){
						$("#H1_5B_ID6 .nextPage").show();
					}
					$("#H1_5B_ID6 .prevPage").hide();
				}
				
	});
});