function hidePDFviewer() {
  	$('#content table').show();
  	$("#controls").show();
  	$("#editor").show();
  	$('#pdframe, #pdfbar').remove();
  }
  
  function showPDFviewer(dir,filename){
  	if(!showPDFviewer.shown){
  		$("#editor").hide();
  		$('#content table').hide();
  		$("#controls").hide();
  		var oldcontent = $("#content").html();
  		var viewer = OC.linkTo('files_pdfviewer', 'viewer.php')+'?dir='+encodeURIComponent(dir).replace(/%2F/g, '/')+'&file='+encodeURIComponent(filename.replace('&', '%26'));
  		$("#content").append('<iframe id="pdframe" style="width:100%;height:100%;display:block;" src="'+viewer+'" /><div id="pdfbar"><a id="close" title="Close">X</a></div>');
  		$("#pageWidthOption").attr("selected","selected");	
  		$('#pdfbar').css({position:'absolute',top:'5px',right:'5px'});
  		$('#close').css({display:'block',padding:'0 5px',color:'#BBBBBB','font-weight':'900',height:'18px',background:'transparent'}).click(function(){
  			hidePDFviewer();
  		});
  	}
  
  }
  showPDFviewer.oldCode='';
  showPDFviewer.lastTitle='';
  
  $(document).ready(function(){
  	if(!$.browser.msie){//doesn't work on IE
  		if(location.href.indexOf("files")!=-1) {
  			if(typeof FileActions!=='undefined'){
  				FileActions.register('application/pdf','Edit', OC.PERMISSION_READ, '',function(filename){
  					showPDFviewer($('#dir').val(),filename);
  				});
  				FileActions.setDefault('application/pdf','Edit');
  			}
  		}
  	}
  });