(function($){$.fn.listnav=function(options){var opts=$.extend({},$.fn.listnav.defaults,options);var letters=['_','a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','-'];var firstClick=false;opts.prefixes=$.map(opts.prefixes,function(n){return n.toLowerCase();});return this.each(function(){var $wrapper,list,$list,$letters,$letterCount,id;id=this.id;$wrapper=$('#'+id+'-nav');$list=$(this);var counts={},allCount=0,isAll=true,numCount=0,prevLetter='';function init(){$wrapper.append(createLettersHtml());$letters=$('.ln-letters',$wrapper).slice(0,1);if(opts.showCounts)$letterCount=$('.ln-letter-count',$wrapper).slice(0,1);addClasses();addNoMatchLI();if(opts.flagDisabled)addDisabledClass();bindHandlers();if(!opts.includeAll)$list.show();if(!opts.includeAll)$('.all',$letters).remove();if(!opts.includeNums)$('._',$letters).remove();if(!opts.includeOther)$('.-',$letters).remove();$(':last',$letters).addClass('ln-last');if($.cookie&&(opts.cookieName!=null)){var cookieLetter=$.cookie(opts.cookieName);if(cookieLetter!=null)opts.initLetter=cookieLetter;}
if(opts.initLetter!=''){firstClick=true;$('.'+opts.initLetter.toLowerCase(),$letters).slice(0,1).click();}
else{if(opts.includeAll)$('.all',$letters).addClass('ln-selected');else{for(var i=((opts.includeNums)?0:1);i<letters.length;i++){if(counts[letters[i]]>0){firstClick=true;$('.'+letters[i],$letters).slice(0,1).click();break;}}}}}
function setLetterCountTop(){$letterCount.css({top:$('.a',$letters).slice(0,1).offset({margin:false,border:true}).top-$letterCount.outerHeight({margin:true})});}
function addClasses(){var str,firstChar,firstWord,spl,$this,hasPrefixes=(opts.prefixes.length>0);$($list).children().each(function(){$this=$(this),firstChar='',str=$.trim($this.children('a').attr('title')).toLowerCase();if(str!=''){if(hasPrefixes){spl=str.split(' ');if((spl.length>1)&&($.inArray(spl[0],opts.prefixes)>-1)){firstChar=spl[1].charAt(0);addLetterClass(firstChar,$this,true);}}
firstChar=str.charAt(0);addLetterClass(firstChar,$this);}});}
function addLetterClass(firstChar,$el,isPrefix){if(/\W/.test(firstChar))firstChar='-';if(!isNaN(firstChar))firstChar='_';$el.addClass('ln-'+firstChar);if(counts[firstChar]==undefined)counts[firstChar]=0;counts[firstChar]++;if(!isPrefix)allCount++;}
function addDisabledClass(){for(var i=0;i<letters.length;i++){if(counts[letters[i]]==undefined)$('.'+letters[i],$letters).addClass('ln-disabled');}}
function addNoMatchLI(){$list.append('<li class="ln-no-match" style="display:none">'+opts.noMatchText+'</li>');}
function getLetterCount(el){if($(el).hasClass('all'))return allCount;else{var count=counts[$(el).attr('class').split(' ')[0]];return(count!=undefined)?count:0;}}
function bindHandlers(){if(opts.showCounts){$wrapper.mouseover(function(){setLetterCountTop();});}
if(opts.showCounts){$('a',$letters).mouseover(function(){var left=$(this).position().left;var width=($(this).outerWidth({margin:true})-1)+'px';var count=getLetterCount(this);$letterCount.css({left:left,width:width}).text(count).show();});$('a',$letters).mouseout(function(){$letterCount.hide();});}
$('a',$letters).click(function(){$('a.ln-selected',$letters).removeClass('ln-selected');var letter=$(this).attr('class').split(' ')[0];if(letter=='all'){$list.children().show();$list.children('.ln-no-match').hide();isAll=true;}else{if(isAll){$list.children().hide();isAll=false;}else if(prevLetter!='')$list.children('.ln-'+prevLetter).hide();var count=getLetterCount(this);if(count>0){$list.children('.ln-no-match').hide();$list.children('.ln-'+letter).show();}
else $list.children('.ln-no-match').show();prevLetter=letter;}
if($.cookie&&(opts.cookieName!=null))$.cookie(opts.cookieName,letter);$(this).addClass('ln-selected');$(this).blur();if(!firstClick&&(opts.onClick!=null))opts.onClick(letter);else firstClick=false;return false;});}
function createLettersHtml(){var html=[];for(var i=1;i<letters.length;i++){if(html.length==0)html.push('<a class="all" href="#">ALL</a><a class="_" href="#">0-9</a>');html.push('<a class="'+letters[i]+'" href="#">'+((letters[i]=='-')?'...':letters[i].toUpperCase())+'</a>');}
return'<div class="ln-letters">'+html.join('')+'</div>'+((opts.showCounts)?'<div class="ln-letter-count" style="display:none; position:absolute; top:0; left:0; width:20px;">0</div>':'');}
init();});};$.fn.listnav.defaults={initLetter:'',includeAll:true,includeOther:false,includeNums:true,flagDisabled:true,noMatchText:'No matching entries',showCounts:true,cookieName:null,onClick:null,prefixes:[]};})(jQuery);