//Jquery URL Plugin
jQuery.url=function(){var segments={};var parsed={};var options={url:window.location,strictMode:false,key:["source","protocol","authority","userInfo","user","password","host","port","relative","path","directory","file","query","anchor"],q:{name:"queryKey",parser:/(?:^|&)([^&=]*)=?([^&]*)/g},parser:{strict:/^(?:([^:\/?#]+):)?(?:\/\/((?:(([^:@]*):?([^:@]*))?@)?([^:\/?#]*)(?::(\d*))?))?((((?:[^?#\/]*\/)*)([^?#]*))(?:\?([^#]*))?(?:#(.*))?)/,loose:/^(?:(?![^:@]+:[^:@\/]*@)([^:\/?#.]+):)?(?:\/\/)?((?:(([^:@]*):?([^:@]*))?@)?([^:\/?#]*)(?::(\d*))?)(((\/(?:[^?#](?![^?#\/]*\.[^?#\/.]+(?:[?#]|$)))*\/?)?([^?#\/]*))(?:\?([^#]*))?(?:#(.*))?)/}};var parseUri=function(){str=decodeURI(options.url);var m=options.parser[options.strictMode?"strict":"loose"].exec(str);var uri={};var i=14;while(i--){uri[options.key[i]]=m[i]||""}uri[options.q.name]={};uri[options.key[12]].replace(options.q.parser,function($0,$1,$2){if($1){uri[options.q.name][$1]=$2}});return uri};var key=function(key){if(!parsed.length){setUp()}if(key=="base"){if(parsed.port!==null&&parsed.port!==""){return parsed.protocol+"://"+parsed.host+":"+parsed.port+"/"}else{return parsed.protocol+"://"+parsed.host+"/"}}return(parsed[key]==="")?null:parsed[key]};var param=function(item){if(!parsed.length){setUp()}return(parsed.queryKey[item]===null)?null:parsed.queryKey[item]};var setUp=function(){parsed=parseUri();getSegments()};var getSegments=function(){var p=parsed.path;segments=[];segments=parsed.path.length==1?{}:(p.charAt(p.length-1)=="/"?p.substring(1,p.length-1):path=p.substring(1)).split("/")};return{setMode:function(mode){strictMode=mode=="strict"?true:false;return this},setUrl:function(newUri){options.url=newUri===undefined?window.location:newUri;setUp();return this},segment:function(pos){if(!parsed.length){setUp()}if(pos===undefined){return segments.length}return(segments[pos]===""||segments[pos]===undefined)?null:segments[pos]},attr:key,param:param}}();

//custom
$(function(){
        
    var currentdir = jQuery.url.attr("directory");
	var currentfile = jQuery.url.attr("path");
	var split_dir = currentdir.split("/");
	var path = split_dir[3]; 
	//var path = currentfile;     
	  $("#content_left_nav li a").each(function (i) {
		  	var url = $(this).attr('href');
            if (url.search(path) > 0) {
                //make sure that class .selectednav has style properties for the active link i.e. .selectednav a{color:#ccc; }
				$(this).parents("li").addClass('left_nav_selected');          
            } 
      });
	  //YOU CAN PUT ALL OTHER JQUERY CODE BELOW.
});