$(function () {
			var appliedBindings = false;


			fNewRef = function(data){
				this.id 			= data.id
				this.naam 		= ko.observable(data.naam);
				if (data.srtlink == "url"){ 
					this.link 		= ko.observable(data.link);
				}
				else {
					this.link			= ko.observable(data.docnaam);
				}
				this.opmerking = ko.observable('');
				if  (data.opmerking && data.opmerking !==null){
					this.opmerking(data.opmerking);
				}
				this.soort 		= ko.observable(data.soort);
				this.srtlink 		= ko.observable(data.srtlink);
				var self 			= this;
				this.show		= ko.computed(function(){
									if (self.naam ==""){return self.link; }
									else {return self.naam;}
								});
			};

		ls.initExtraInfo = function(){

		if (ls.ModelExtrainfo !== undefined) {

		} else {
			ls.ModelExtrainfo = {
				litrefs 		: ko.observableArray([]),
				selectedRef: ko.observable(),
				isAdmin	: ko.observable(),
				welkeSoort : ko.observable(1),
				zoektekst	: ko.observable(),
				actionURL	: ko.observable(),
				upload		: ko.observable(true),
				LSselectedFile: ko.observable(),

				InitValues : 	function(){
					var self =ls.ModelExtrainfo;
					self.welkeSoort(1);
					self.fgetRefs();
				},
				fgetRefs : function(){
					var self= ls.ModelExtrainfo;
					var submitData={'zoek' : self.zoektekst,
									'soort' : self.welkeSoort()};

					$.post("index.php/ijkpartituur/extrainfo/getRefs", submitData, function(data){
						if (data.admin == 1) {self.isAdmin(true) ;}
						else {self.isAdmin(false) ; } ;

						self.litrefs.removeAll();
						$.each(data.refs, function(i,p){
							self.litrefs.push(new fNewRef(p));
						});
					},'json');
					return true;  // het click event dwingt om hier return true te gebruiken. en click is nodig voor IE8
				},
				fsaveRef : 	function(){
					if (!appliedBindings) {return ;} ;
					var tnaam= this.link();
					if (this.link() != null)
					{
						if (this.srtlink() == "ext.ref"  && this.link().length > 4){
							this.srtlink("url");
						}
					};	
					if (this.srtlink() == 'file'){
						tnaam = ''
					}
					if (this.srtlink() == "url"){
						if (this.link().indexOf("http") < 0 ){
							this.link("http://" + this.link());
						};
					}
					var submitData	=   {	id 			: this.id,
										naam		: this.naam(),
										link 		: tnaam,
										opmerking	: this.opmerking(),
										srtlink		: this.srtlink()};
					$.post("index.php/ijkpartituur/extrainfo/saveRef", submitData);
				},
				fNewLitRef : 	function(){
					var self=ls.ModelExtrainfo;
					$.post("index.php/ijkpartituur/extrainfo/newLitRef/"+ self.welkeSoort(), function(data){
							self.litrefs.push(new fNewRef(data))
					},'json');
				},
				fDelLitRef : 	function(){
					var self = ls.ModelExtrainfo;
					var ref = this;
					apprise("Weet u zeker dat u " + this.naam() + " wilt verwijderen?",{'verify' : true, 'textYes': 'ja', 'textNo': 'nee'}, function(ans){
						if (ans){
							$.post("index.php/ijkpartituur/extrainfo/delRef/"+ref.id);
							self.litrefs.remove(ref);
						};
					});
				},
				fUpload 	: function (){
					var self = ls.ModelExtrainfo;
					self.selectedRef(this);
					if (  $('#lsOverlay').css('display')  == 'none'  ) { $("#lsOverlay").fadeIn() };
					setDrag("#popUploadADoc")
					$('#popUploadADoc').fadeIn();
				},
				fDownload 	: function (){
					if (this.srtlink() != "file") {return;};
					var win=window.open('index.php/ijkpartituur/documents/LSDownloadDoc/' + this.id, '_blank');
					win.focus();				
				},
				fSetNaam	: function(){
					var self = ls.ModelExtrainfo;
					if (self.LSselectedFile() ==''){return;}
					if (self.selectedRef().naam() == '' || self.selectedRef().naam() =='undefined' ||
						self.selectedRef().naam() == null) {
						self.selectedRef().naam(self.LSselectedFile().replace("C:\\fakepath\\", ""))
					}
					if (self.LSselectedFile()) {
						self.selectedRef().link(self.LSselectedFile().replace("C:\\fakepath\\", "") );
					}
				},

				fUploadToServer	: function(){
					var self=ls.ModelExtrainfo;

					var originalname ='';
					if (self.LSselectedFile()){
						originalname=self.LSselectedFile().replace("C:\\fakepath\\", '') ;
					}
					else originalname = self.selectedRef().link();

					self.selectedRef().link(originalname);

					var url = 'index.php/ijkpartituur/documents/LSUpload/' + self.selectedRef().id + '/' + self.welkeSoort();
					self.actionURL(url);
					//$("#LSupload-overlay").fadeIn(100, function(){
						$("#LSuploadform").submit();
						self.selectedRef().srtlink('file');
					//	$("#LSupload-overlay").fadeOut(300);
					//});
				}
			};

		ls.ModelExtrainfo.InitValues();
						ko.applyBindings(ls.ModelExtrainfo, document.getElementById("extrainfo-pagina"));
						appliedBindings = true;
		}; // else
	}; //init

});