function replaceMainpic(picPath, background,title) {
	$('#imageMain').fadeOut("slow", function() {
		var img = new Image();
	
		  // wrap our new image in jQuery, then:
		 $(img)
			// once the image has loaded, execute this code
			.load(function () {
			  // set the image hidden by default    
			  var image = $(this);
			  image.hide();
			  image.attr('id','imageMain');
			  var oldclass = $('#imageMain').attr('class');
			  image.addClass(oldclass);
			  // with the holding div #loader, apply:
			  
			  $('#imageMain').replaceWith(image);
			  var w = $('#imageMain').width();
			  var h = $('#imageMain').width();
			  
			  var newW = (705 - image.width()) / 2; 
			  image.css('padding-left',newW);
			  image.css('padding-right',newW);	
			  image.css('background', background);
				
			
			  // fade our image in to create a nice effect
			  image.fadeIn("slow");
			})
			
			// if there was an error loading the image, react accordingly
			.error(function () {
			  // notify the user that the image could not be loaded
			})
			
			// *finally*, set the src attribute of the new image to our image
			.attr('src', picPath)
			.attr('title',title);
		}
	);	
}

var lastTab;
var catalog;

function clickGalleryTab() { 

  // put last tab to back
  if (lastTab!=null) {
	  var lastpath = lastTab.attr("src");
	  src = lastpath.replace(/_top.png/g, ".png");
	  lastTab.attr("src",src);
  }
  // bring next tap to front
  var path = $(this).attr("src");
  src = path.replace(/.png/g, "_top.png");
  $(this).attr("src",src);
  catalog = $(this).attr("cat");
  loadGallery();
  lastTab = $(this);
}

var lastMainTab;
var hideMethod;

function clickMainTab() { 

  // put last tab to back
  if (lastMainTab!=null) {
	  var lastpath = lastMainTab.attr("src");
	  src = lastpath.replace(/_top.png/g, ".png");
	  lastMainTab.attr("src",src);
	  lastMainTab.addClass("ltNormal");
  }
  // bring next tap to front
  var path = $(this).attr("src");
  src = path.replace(/.png/g, "_top.png");
  $(this).attr("src",src);
  $(this).removeClass("ltNormal");

  lastMainTab = $(this);
  
  if (hideMethod!="undefined()")
	eval(hideMethod);
  hideMethod = $(this).attr("hide")+"()";

  var execute = $(this).attr("execute")+"()";
  if (execute!="undefined()")
	eval(execute);
  
}

function clickBildbearbeitungTab() { 
  // put last tab to back
  if (lastMainTab!=null) {
	  var lastpath = lastMainTab.attr("src");
	  src = lastpath.replace(/_top.png/g, ".png");
	  lastMainTab.attr("src",src);
	  lastMainTab.addClass("ltNormal");
  }
  // bring next tap to front
  var tab = $("#bildbearbeitungTab");
  var path = tab.attr("src");
  src = path.replace(/.png/g, "_top.png");
  tab.attr("src",src);
  tab.removeClass("ltNormal");

  lastMainTab = tab;
  
  if (hideMethod!="undefined()")
	eval(hideMethod);
  hideMethod = tab.attr("hide")+"()";

  var execute = tab.attr("execute")+"()";
  if (execute!="undefined()")
	eval(execute);
}


function enableGallery() {
	loadGallery();
	$("#footer").show();
}

function hideGallery() {
	$("#footer").hide();
}

function showHome() {
	var img="images/menschen/julia_titel_0715.png";
	var path = $("#imageMain").attr("src");
	if (img!=path) {
		replaceMainpic("images/menschen/julia_titel_0715.png");
	}
}

function hideHome() {
}

function showBio() {
	$("#imageMain").hide();
	$("#bio").show();
}

function hideBio() {
	$("#imageMain").show();
	$("#bio").hide();
}

function showBildbearbeitung() {
	$("#imageMain").hide();
	$("#bildbearbeitung").show();
	$("#dvd-content").show();			
}

function hideBildbearbeitung() {
	$("#imageMain").show();
	$("#bildbearbeitung").hide();
	$("#dvd-content").hide();						
}	

function disableEbookLinks(disable) {
    if (disable) {
		$("#bestellenLink").hide();
		$("#downloadLink1").hide();
		$("#downloadLink2").hide();		
	} else {
		$("#bestellenLink").show();
		$("#downloadLink1").show();
		$("#downloadLink2").show();		
	}
}

function showEbook() {
	disableEbookLinks(true);
	$("#ebook").show();
}	

function showEbookDownload(type) {
	disableEbookLinks(true);
	if (typeof(type) =='undefined' || type=='') {
		$("#eldtype").val(''); 	
	}
	else {
		$("#eldtype").val(type); 
	}
	
	$("#ebookDownload").show();
}	

function hideEbook() {
	disableEbookLinks(false);
	$("#ebook").hide();
}	

function hideEbookDownload() {
	disableEbookLinks(false);
	$("#ebookDownload").hide();
}

function setupGalleryTabs() {
   $("#footer img[class*=footerPic]").each(function () {
	  var path = $(this).attr("src");

	  if ($(this).hasClass("default")) {
		if (path.indexOf("_top.png")==-1) {
		  src = path.replace(/.png/g, "_top.png");			  
		  $(this).attr("src",src);		  	  
						  
		}
		catalog = $(this).attr("cat");
		lastTab = $(this);							
	  } else {
		  src = path.replace(/_top.png/g, ".png");
		  $(this).attr("src",src);		  				  
	  }

	  $(this).click( clickGalleryTab);
	  
   });		   
}

function setupForm() {
	$("#form_submit").attr("disabled", "disabled");
	$("#ebookForm input[class*=change-field]").each(function () {
	  $(this).keyup(
			function() {
				var name = $("#name").val();
				var strasse = $("#strasse").val();
				var plzort = $("#plzort").val();
				var emal = $("#emal").val();
				
				if (name!='' && strasse!='' && plzort!='' && emal!='') {
					$("#form_submit").removeAttr('disabled');	
				} else {
					$("#form_submit").attr("disabled", "disabled");						
				}
			});

	  //	
   });
}

function setupMainTabs() {
   $("#main img[class*=lefttab-image]").each(function () {
	  var path = $(this).attr("src");

	  if ($(this).hasClass("default")) {
		  if (path.indexOf("_top.png")==-1) {
			  src = path.replace(/.png/g, "_top.png");			  				  
			  $(this).attr("src",src);		  
		  }
		  lastMainTab = $(this);
	  } else {
		  src = path.replace(/_top.png/g, ".png");
		  $(this).attr("src",src);		  
	  }
	  $(this).click(clickMainTab);
   });		   
}

function loadGallery() {
	$("#pics img").remove();
	$.getJSON(catalog+"/bilderinfo.txt",
	function(data){
		
	  $.each(data.items, function(i,item){
	   var img =  $("<img />").attr("src", item.media.t);
	   img.attr("class","footerbarImg");
	   img.attr("onClick","replaceMainpic('"+item.media.m+"','"+item.media.background+"','"+item.description+"')");
	   img.attr("title",item.description);
	   //img.attr("alt",item.description);
	   img.appendTo("#pics");

	  });
	});		
}

function notifyEmail()
{
  $('#emalerr').fadeIn('slow')
}

function echeck(str) {

		var at="@";
		var dot=".";
		var lat=str.indexOf(at) ;
		var lstr=str.length;
		var ldot=str.indexOf(dot);
		if (str.indexOf(at)==-1){
                   notifyEmail();
		   return false;
		}

		if (str.indexOf(at)==-1 || str.indexOf(at)==0 || str.indexOf(at)==lstr){
                   notifyEmail();
		   return false;
		}

		if (str.indexOf(dot)==-1 || str.indexOf(dot)==0 || str.indexOf(dot)==lstr){
                   notifyEmail();
		    return false;
		}

		 if (str.indexOf(at,(lat+1))!=-1){
                   notifyEmail();
		    return false;
		 }

		 if (str.substring(lat-1,lat)==dot || str.substring(lat+1,lat+2)==dot){
                   notifyEmail();
		    return false;
		 }

		 if (str.indexOf(dot,(lat+2))==-1){
                   notifyEmail();
		    return false;
		 }

		 if (str.indexOf(" ")!=-1){
                   notifyEmail();
		    return false;
		 }

 		 return true;
	}

 $(document).ready(function(){

	setupGalleryTabs();
	setupMainTabs();
	setupForm();
	loadGallery();
	
  			

 }
);