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/* http://keith-wood.name/gChart.html
   Google Chart interface for jQuery v1.2.1.
   See API details at http://code.google.com/apis/chart/.
   Written by Keith Wood (kbwood{at}iinet.com.au) September 2008.
   Dual licensed under the GPL (http://dev.jquery.com/browser/trunk/jquery/GPL-LICENSE.txt) and 
   MIT (http://dev.jquery.com/browser/trunk/jquery/MIT-LICENSE.txt) licenses. 
   Please attribute the author if you use it. */
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function changeGrade(e)
{
	if(!e.length)
		$e = $(this);
	else
		$e = $(e);
	$('div#button_rows a').removeClass('selected');
	$e.addClass('selected');
	if($e.attr('id')=='a_plus' || $e.attr('id')=='a_minus')
		$('#a').addClass('selected');
	else if($e.attr('id')=='b_plus' || $e.attr('id')=='b_minus')
		$('#b').addClass('selected');
	else if($e.attr('id')=='c_plus' || $e.attr('id')=='c_minus')
		$('#c').addClass('selected');
	else if($e.attr('id')=='d_plus' || $e.attr('id')=='d_minus')
		$('#d').addClass('selected');
	else if($e.attr('id')=='e_plus' || $e.attr('id')=='e_minus')
		$('#e').addClass('selected');
	$('#new_review_rating').val($e.attr('id'));
	return false;
}
function rateResource(form)
{
	if($('textarea[name="review[comment]"]').val().length == 0)
	{
		open_success_dialog('Please leave a comment','Your classmates hooked you up with notes, tell them how you feel!');
		return false;
	}
	
	$.ajax({
		type: 'post',
	  	url: '/resource-review/put/format/json',
	  	data: $(form).serialize(),
	  	success: function(){
	   		window.location = '/document';
	  	},
	  	statusCode: {
			400: function(msg) {
	      		open_success_dialog('Please leave a comment','Your classmates hooked you up with notes, tell them how you feel!');
	    	}
	  	},
	  	dataType: 'json'
	});

	return false;
}
function openUsernameChangeDialog(a)
{
	if(!$('#change-username-dialog').length)
	{
		$('body').append('<div id="change-username-dialog" title="Change Username"><form onsubmit="return checkUsername(this)">Enter a new username: <input type="text" size="15" value="' + $(a).prev().text() + '" /> <input type="submit" value="Save"><br /><br /><i style="font-size:11px">Notice: Your username will be publicly displayed to all other users</i></form></div>');
		$('#change-username-dialog').dialog({autoOpen:false,width:400,modal:true,draggable:false,resizable:false, buttons:{"Cancel":function(){$(this).dialog("close");}}});
	}
	$('#change-username-dialog').dialog('open');
}
function checkUsername(e)
{
	open_busy_dialog('One Moment Please', 'Checking Your New Username..');
	var username = $(e).find('input[type="text"]').val();
	$.get('/user/username-exists', {username: username, format: 'json' }, function(json){
		close_busy_dialog();
		if(json.taken)
		{
			open_success_dialog('Whoops', 'This username is already taken! Please try entering a different one');
			$(e).find('input[type="text"]').css('border','1px solid red');
		}
		else
		{
			$('#welcome span').text(username);
			$(e).css('border','0');
			$('#change-username-dialog').dialog('close');
			$.post('/user/put/format/json', { user: {username: username} });
		}
	},'json');
	return false;
}

function loadCRClasses(subjectCode, $target, schoolId)
{
	if(!schoolId)
			schoolId = 0;
	$.getJSON('/university/course/', { subjectCode: subjectCode, schoolId: schoolId, format: 'json' },
    		function(data)
    		{
    			var options = '<option value="0">--Choose Class--</option>';
    			$.each(data.courses, function(k, classInfo) {
			        	options += '<option value="' + classInfo.catalogNumber + '">' + subjectCode + ' ' + classInfo.catalogNumber + ' - ' + classInfo.title + '</option>';
	        		}
    			);
    			close_busy_dialog();
    			$target.html(options).focus();
    			$('#choose-class').show();
    			$('div#free-doc-box form').animate({ width: 550});
    		}
	);
}

function loadCRInstructors(schoolId, subjectCode, catalogNumber, $target)
{
	courseData = schoolId+'-'+subjectCode+'-'+catalogNumber;
	$.getJSON('/index/course-instructors/', {courseData:courseData, format: 'json' },
    		function(data)
    		{
    			var options = '<option value="0">--Choose Instructor--</option>';
    			$.each(data.instructors, function(k, instructor) {
			        	options += '<option value="' + instructor.instructor+ '">' + instructor.instructor + '</option>';
	        		}
    			);
    			close_busy_dialog();
    			$target.html(options).focus();
    		}
	);
}
function loadProfessors(departmentId, $targetSelectBox)
{
	var options = '';
	options += '<option value="0">--Choose Professor--</option>';
	options += '<option value="-1">--Not Listed--</option>';
	
	$.getJSON('/university/professor/', { departmentId: departmentId, format: 'json' }, function(data)
			{
				$.each(data.professors, function(k,professor){
					options += '<option value="' + professor.professorId + '">' + professor.name + '</option>';
				});
				if(data.professors.length==0)
					$targetSelectBox.html('<option value="-1">--None Available--</option>');
				else
					$targetSelectBox.html(options);
			}
	);
}
function dropCourse(schoolId, subjectCode, catalogNumber, e)
{
	$.post('/university/course-enrollment/delete/format/json', {schoolId:schoolId, subjectCode:subjectCode, catalogNumber:catalogNumber}, function(){e.parent().fadeOut();});
}
function openAddCourseBox(){
	$.get('/user/add-course/', function(html){$('#add-class-box').html(html); $('div#add-class-box').dialog('open'); return false;});
	return false;
}
function load_edit_pane(documentId, element, classname){
	if(documentId)
		active_doc_id = documentId;
	open_busy_dialog(0,'Loading Document Data...');
	$docEditPane = $('#doc-edit-pane');
	if($docEditPane.length == 0)
	{
		$('body').append('<div id="doc-edit-pane" title="Edit Document"><div></div></div>');
		$("#doc-edit-pane").dialog({autoOpen:false,width:400,modal:true,buttons:{"Save":function(){return update_document(element,classname);},"Cancel":function(){$(this).dialog("close");}}});
		$docEditPane = $('#doc-edit-pane');
	}

	$.get('/document/editpane/id/'+active_doc_id,function(data){$docEditPane.children('div').html(data);close_busy_dialog();$docEditPane.dialog('open');});
	return false;
}
function update_document(element){//Brought back, needed for edit document
	$('#doc-edit-pane').dialog("close");
	open_busy_dialog(0,'Saving Document Data...');
	//get form values
	var description = $('#edit_doc_description').val();
	var title = $('#edit_doc_title').val();
	var form_class_id = escape($('#edit_doc_class').val());
	var form_title = escape(title);
	var form_description = escape(description);
	var form_type = escape($('#edit_doc_type').val());
	var form_listed_professor = escape($('#edit_doc_professor_select').val());
	var form_custom_professor = escape($('#edit_doc_professor_new').val());
	//post values
	$.ajax({
		type:'POST',
		url:'/document/edit/id/'+active_doc_id, 
		data: 
		"class_id="+form_class_id+
		"&title="+form_title+
		"&description="+form_description+
		"&custom_professor="+form_custom_professor+
		"&listed_professor="+form_listed_professor+
		"&type="+form_type,  
		dataType:'json',
		success: function(json){
			element.parent().prev().prev().prev().text(unescape(title));
			element.parent().prev().text(unescape(form_description));
			element.parent().prev().prev().html(unescape(form_type) + '  for <b>' + json.className+' - '+json.professorName+'</b>');
			if(form_custom_professor)$('#active_doc .professor').text(unescape(form_custom_professor));
			else $('#active_doc .professor').text($('#edit_doc_professor_select :selected').text());
			$('#active_doc .note_type').text($('#edit_doc_type :selected').text());
			$('#active_doc .class').html('<a href="/class/profile/id/'+form_class_id+'">'+$("#edit_doc_class :selected").text()+'</a>');
			close_busy_dialog();
			open_success_dialog(0,'Your document has been successfully saved!');
		}
	});
	return false;
}
function loadDocShareDialog(documentId)
{
	open_busy_dialog(0,'Loading Document Data...');
	$docSharePane = $('#doc-share-pane');
	if($docSharePane.length == 0)
	{
		$('body').append('<div id="doc-share-pane" title="Share Your Document"><div></div></div>');
		$("#doc-share-pane").dialog({autoOpen:false,width:470,modal:true,buttons:{"Close":function(){$(this).dialog("close")}}});
		$docSharePane = $('#doc-share-pane');
	}

	$.get('/document/share-info/id/'+documentId,function(data){
		$docSharePane.children('div').html(data);
		close_busy_dialog();
		$docSharePane.dialog('open');
		clip = new ZeroClipboard.Client();
		console.log(clip);
		clip.setHandCursor(true);
		clip.setText(link);
		clip.glue('clip-button', 'clip-container');
		clip.addEventListener('complete', function (client, text) {
			open_success_dialog('Copied!','Now just open your favorite email client and paste the link into it along with a short message and watch the dollars roll in!');
		});
	});
	return false;	
}
function open_confirm_dialog(title,body){$('#ui-dialog-title-confirm_dialog').text(title);$('#confirm_dialog h4').text(body);$('#confirm_dialog').dialog('open');return false;}
function open_busy_dialog(title,body)
{
	if(title==0)
		title='Please Wait...';
	if(!$('#busy_dialog').length)
	{
		$('body').append('<div id="busy_dialog" title="Please Wait..."><img src="/images/ajax-loading.gif" /><h4></h4></div>');
		$('#busy_dialog').dialog({autoOpen:false,width:400,modal:true,draggable:false,resizable:false});
	}
	$('#ui-busy-dialog-title-dialog').text(title);
	$('#busy_dialog h4').text(body);
	$('#busy_dialog').dialog('open');
	return false;
}
function close_busy_dialog(){$('#busy_dialog').dialog('close');}
function open_success_dialog(title,body,newWidth){
	if(title==0)
		title='Success!';
	$successDialog = $("#success_dialog");
	if($successDialog.length == 0)
	{
		$('body').append('<div id="success_dialog" title="Success!"><h4></h4></div>');
		$("#success_dialog").dialog({autoOpen:false,width:400,modal:true,draggable:false,buttons:{"Ok":function(){$(this).dialog("close");}}});
		$successDialog = $("#success_dialog");
	}	
	$('#ui-dialog-title-success_dialog').text(title);
	$successDialog.children('h4').html(body);
	if(newWidth)
		$successDialog.dialog('option','width',newWidth);
	$successDialog.dialog('open');
	return false;
}
function openDialogBox(title,body,newWidth)
{
	if(title==0)
		title = 'Success!';
	$dialog = $("#dialogBox");
	if($dialog.length == 0)
	{
		$('body').append('<div id="dialogBox" title="' + title + '"></div>');
		$("#dialogBox").dialog({autoOpen:false,width:400,modal:true,draggable:false,buttons:{"Ok":function(){$(this).dialog("close");}}});
		$dialog = $("#dialogBox");
	}
	else
		$('#ui-dialog-title-success_dialog').text(title);
	$dialog.html(body);
	if(newWidth)
		$dialog.dialog('option','width',newWidth);
	$dialog.dialog('open');
	return false;
}
function closeDialog(){ $("#success_dialog").dialog('close'); } 
function checkAll($e,onOff)
{
	$e.parent().parent().parent().find('input[type=checkbox]').each(function(){$(this).attr('checked', onOff)});
}
function checkSellForm()
{
	var documentName = jQuery.trim($('input#document-name').val());
	if(documentName.length == 0) {
		open_success_dialog('Error', 'You must enter a document name!');
		return false;
	}
	var documentDescription = jQuery.trim($('textarea#document-description').val());
	if(documentDescription.length == 0) {
		open_success_dialog('Error', 'You must enter a document description!');
		return false;
	}
	if(!$('#original-work').attr('checked')){
		open_success_dialog('Error', 'On Notehall, we only allow original works, please see our Terms and Conditions for more information');
		return false;
	}
		
	
	open_busy_dialog(0,'Creating Your Listing...');
	$('#one-step-selling').submit();
	return false
}

function deleteDocument(element, documentId){
	$("#confirm_dialog").dialog({autoOpen:false,width:300,modal:true,draggable:false,buttons:{"Ok":function(){
		$.post('/document/delete',{id:documentId},
				function(json){
				if(json.success == 1)
					element.parent().parent().fadeOut();
				else{
					if(json.isEccDoc == 1)
						alert('Sorry, but you can not delete an official Note Taker document. If you would like to upload an updated version of this document please use the "Replace" button located in your Note Taker Portal.');
					else{
						alert('You do not have permission to delete this document!');
					}
					
				}
				});
		$("#confirm_dialog").dialog("close");
		return false;
		},"Cancel":function(){$(this).dialog("close");}}});
	open_confirm_dialog('Document Delete','Are you sure you wish to delete this document?');
}
function sharedToggle(documentId){$.post('/document/shared-toggle',{id:documentId});}
function loadMoreDocuments(type, $container)
{
	open_busy_dialog();
	var $actionButton = $('#load-more-'+type);
	if(isNaN($actionButton.data('page')))
		$actionButton.data('page',1);
	$.get('/document/get-'+type,{page:$actionButton.data('page')},function(html){
		if(!html.length)
			$actionButton.hide();
		else
		{
			$container.append(html);
			$actionButton.data('page',$actionButton.data('page')+1);
		}
		close_busy_dialog();
	});
	return false;
}
function getCCApp(classId){
	$.get('/student/get-content-creator-app', {id:classId, noRend:true}, function(response){
		$('#cc-app-form').html(response);
	});
	return false;
}
function loadPreview(scribdDocId, scribdKey)
{
	$("#success_dialog").dialog('option','height',600);
	open_success_dialog('Document Preview', '<div id=\'embedded_flash\'><a href=\'http://www.scribd.com\'>Scribd</a></div>', 600);
	var scribd_doc = scribd.Document.getDoc(scribdDocId, scribdKey);
	scribd_doc.addParam('height', 400);
	$("#success_dialog").css('padding-top', 0);
	scribd_doc.write('embedded_flash');
	$('#success_dialog').dialog('option', 'position', 'center');
	return false;
}

function autoFillAddress(firstname, lastname, streetAddress, city, state, zip, phone,isPrevAddress){
	$('#firstname').val(firstname);
	$('#lastname').val(lastname);
	$('#address').val(streetAddress);
	$('#city').val(city);
	$('#state').val(state);
	$('#zip').val(zip);
	$('#phone').val(phone);
	$('#isPrevAddress').val(isPrevAddress);
}
function openMessage()
{
	window.location = $(this).find('a').attr('href');
}
function subscribeTo(type, id, e)
{
	$.post('/user/subscribe', {type:type,id:id}, function(json){
		if(json.subscribed == 1)
		{
			if(type == 'class')
			{
				open_success_dialog('Subscribe To Class', 'You have successfully subscribed to this class. Any time a document is posted to this class you will receive an email. If at any point you would like to stop receiving emails click on this button again or go to the Account -> Settings Page and click on the "Privacy/Email Settings Tab');
				$(e).hide().prev().show();
			}
			else
				open_success_dialog('Follow Seller', 'You are now following this seller. Any time a document is posted by this seller you will receive an email. If at any point you would like to stop receiving emails click on this button again or go to the Account -> Settings Page and click on the "Privacy/Email Settings Tab');
		}
		else
		{
			if(type == 'class')
				$(e).hide().next().show();
		}
	},'json');
	return false;
}

function initPlupload(task, id, e, schoolId)
{
		uploadUrl = '/upload/process/task/' + task + '/id/' + id;
		//Dont resize if this is an ecc screen shot upload
		pluploaderOptions = {
				runtimes : 'gears,html5,flash,silverlight,browserplus',
				url : uploadUrl,
				flash_swf_url : '/plupload/js/plupload.flash.swf',
				silverlight_xap_url : '/plupload/js/plupload.silverlight.xap'
		};
		
		if(task == 'Documents'){
			pluploaderOptions['max_file_size'] = '20mb';
			pluploaderOptions['schoolId'] = schoolId;
			pluploaderOptions['chunk_size']= '1mb';
			pluploaderOptions['unique_names'] = true;
			pluploaderOptions['filters'] =	{title : "Documents", extensions : "doc,docx,txt,xls,xlsx,pdf,odt,rtf"}
			pluploaderOptions['data'] = {
					cashOutsTotal : $(e).data('cashOutsTotal'),
					lectureNoteValue : $(e).data('lectureNoteValue'),
					studyGuideValue : $(e).data('studyGuideValue'),
					departments : $(e).data('departments'),
					schoolId	: schoolId
			};
			$.getJSON("/university/department/index/schoolId/"+schoolId+'/format/json/', function(data){
				pluploaderOptions['data']['departments'] = data.departments;
				$(e).pluploadQueue(pluploaderOptions);
		});
		}
		else{
			pluploaderOptions['browse_button']  = 'pickfiles';
			pluploaderOptions['container']= task;
			pluploaderOptions['max_file_size'] = '10mb';
			pluploaderOptions['filters'] = [{title : "Image files", extensions : "jpg"}];
			
			if(task == 'intern-pic')
				pluploaderOptions['resize'] = {width : 150, height : 172, quality : 90};
			
			var uploader = new plupload.Uploader(pluploaderOptions);
			uploader.init();
			
			uploader.bind('FilesAdded', function(up, files) {
				uploader.start();
				up.refresh(); // Reposition Flash/Silverlight
				if(task == 'ecc-screenshot')
					alert('Screen shot uploaded successfully');
			});
	
			if(task =='intern-pic')
			{
				uploader.bind('UploadProgress', function(up, file) {
					$('#pickfiles').next().html(file.percent + "%");
				});
			
				uploader.bind('FileUploaded', function(up, file) {
					$('#edit-intern').find('img').attr('src' , '/images/internpics/' + id + '.jpg' + '?t=' + new Date().getTime());
				});
			}
			else{
				uploader.bind('FileUploaded', function(up, file) {
					alert('File Uploaded');
				});
				
			}
		}
}

function studentFollowingChart(task, id){
	if(task == 'display')
	{
		if(!$('div#user-following').length)
		{
			$('body').append('<div id="user-following"><div></div></div>');
			$('div#user-following').dialog({autoOpen:false,width:750,height:650,modal:true,draggable:true, buttons:{"Close":function(){studentFollowingChart('seen');}}});
		}
		$.get("/user/following",{id:id}, function(data){ 
			$('div#user-following').children('div').html(data);
			$('div#user-following').dialog('open');
			$('div#user-following').dialog('option', 'position', 'center');
		});
	}
	else if (task == 'seen'){
		$('div#user-following').dialog('close');
		return false;
	}
	return false;
}

function toggleElementDisplay(elementName)
{
	if($('#'+elementName).css('display')=='none')
		$('#'+elementName).fadeIn('slow');
	else 
		$('#'+elementName).fadeOut('slow');
	return false;
}
(function($){
	var origContent = '';
	var methods = {
			init : function(autoLoadTabs) 
			{
				$.history.init(classDataLoader);
				if(autoLoadTabs)
				{
					showTabMarkup();
					$('#class-link-' + autoLoadTabs).parent().addClass('active');					
				}
			},
			classDataLoader : function(hash)
			{
				if(origContent == '')
					origContent = $('#content-inner').html();
				if(hash != "") 
				{
					if(hash.indexOf('subjectCode=') != -1)
					{
						var hasFilters = false;
						if(hash.indexOf('&') != -1)
						{
							hasFilters = true;
							classParam = hash.substring(0, hash.indexOf('&'));
						}
						else
							classParam = hash;
						//classId = classParam.replace(/[^0-9]/g, '');
						if(hash.lastIndexOf('&') != -1 && hash.lastIndexOf('&') > hash.indexOf('schoolId')+7)
							endSid = hash.indexOf('&', hash.indexOf('schoolId'));
						else
							endSid = hash.length;
						schoolId = hash.substring(hash.indexOf('schoolId')+9, endSid);
						subjectCode = hash.substring(12, hash.indexOf('&')); 
						catalogNumber = hash.substring(hash.indexOf('catalogNumber')+14, hash.indexOf('&schoolId'));
						
						classId = schoolId + subjectCode + catalogNumber;
						
						//console.log(subjectCode);//console.log(catalogNumber);//console.log(schoolId);
						console.log(self.activeClassId);console.log(classId);
						if(self.activeClassId != classId)
							loadClass(subjectCode, catalogNumber, schoolId);
						else
							parseUrl();
					}
				}
				else
				{
					hideTabMarkup();
					$('#content-inner').html(origContent);
					self.activeClassId = null;
				}
			},
			loadClass : function(subjectCode, catalogNumber, schoolId)
			{
				self.activeClassId = schoolId + subjectCode + catalogNumber;
				resetActiveTabs();
				$e = $('#class-link-' + self.activeClassId);
				if($e.length)
					$e.ajaxIndicator('start').parent().addClass('active');
				$.get('/resource', {subjectCode:subjectCode, catalogNumber:catalogNumber, schoolId:schoolId }, function(html)
				{
					$('#content-inner').html(html);
					$('#filters').find('h2').each(function(){
						$(this).click(function(){
							var $img = $(this).children().first(); 
							if($img.attr('src')=='/images/layout/header-arrow-black.png')
								$img.attr('src', '/images/layout/header-arrow-down-black.png');
							else
								$img.attr('src', '/images/layout/header-arrow-black.png');
							$(this).next().toggle();
						});
					});
					showTabMarkup();
					$e.ajaxIndicator('stop');
				});
			},
			showTabMarkup : function() 
			{
				if(!$('#content-inner').hasClass('notehall-tab'))
					$('#content-inner').addClass('notehall-tab').addClass('ui-widget-content').addClass('ui-corner-bottom');
			},
			hideTabMarkup : function() 
			{
				resetActiveTabs();
				$('#content-inner').removeClass('notehall-tab').removeClass('ui-widget-content').removeClass('ui-corner-bottom');
			},
			resetActiveTabs : function()
			{
				$('.view-class').each(function(){$(this).parent().removeClass('active')});
			},
			clearFilters : function()
			{
				var filters = $(this).ajaxIndicator('start').data('filters');
				var windowHash = window.location.hash;
				$.each(filters, function(newFilterName, newFilterVal) {
					windowHash = windowHash.replace('&' + newFilterName + '=' + newFilterVal, '');
				});
				$(this).ajaxIndicator('stop');
				window.location.hash = windowHash;
			},
			setFilters : function(e,filters)
			{
				var windowHash = window.location.hash; 
				$.each(filters, function(newFilterName, newFilterVal) 
				{
					//If the URL contains a side-filter that is changing, then we need to make sure to reset the page
					$input = $('#class-listings form input[name="' + newFilterName + '"]');
					if($input.hasClass('side-filter') && $input.val() != newFilterVal)
						windowHash = windowHash.replace(/&page=([^&]*)/gi, '&page=1');
					//Now deal with the new filter itself
					if(windowHash.indexOf(newFilterName + '=') != -1)
						windowHash = windowHash.replace(new RegExp('[&?]' + newFilterName + '=([^&]*)', 'g'), '&' + newFilterName + '=' + newFilterVal);
					else if(newFilterVal)
						windowHash = windowHash + '&' + newFilterName + '=' + newFilterVal;
				});
				window.location.hash = windowHash;
				if(e)
					$(e).ajaxIndicator('start');
			},
			parseUrl : function()
			{
				var map = {};
				var parts = window.location.hash.replace(/[?&#]+([^=&]+)=([^&]*)/gi, function(m,key,value) {map[key] = value; });
				var windowHash = window.location.hash; 
				$.each($('#class-listings form').children('input'), function(i, input) {
					$input = $(input);
					var filterName = $input.attr('name');
					if(filterName == 'id' || filterName == 'class') //DO NOT MESS WITH THE ID
						return;
					var filterVal = map[filterName];
					if(map[$input.attr('name')] != null) //url contains filter?
					{
						//Only do anything further if the value is new
						if($input.val() != filterVal)
						{
							//set form val to what is held in the url
							//Do appropriate actions if a side-filter
							if($input.hasClass('side-filter'))
							{
								//Show/hide all the right filter buttons
								$link = $('#' + filterName + filterVal);
								$link.parent().parent().children().hide();
								$link.parent().show();
								//Build clear button (if applicable)
								if($link.parent().find('.filter-clear').length == 0)
								{
									filters = {};
									filters[filterName] = map[filterName];
									$clearButton = $('<a />').data('filters', filters).click(clearFilters).html('<img src="/images/layout/delete.png" /> Clear').attr('class','filter-clear');
									$link.after($clearButton);
								}
							}
							$input.val(filterVal);
						}
					}
					else
					{
						$input.val('');
						if($input.hasClass('side-filter'))
							$('#' + $input.attr('name')).children().show().children().next('a').remove();
						if($input.attr('name') == 'page') //Make sure to reset the page if the page is no longer in the URL 
							$('#class-listings form input[name="page"]').val(1);
					}
				});
				processFilters();
			},
			processFilters : function()
			{
				$.get('/resource', $('#class-listings form').serialize() + '&src=filters', function(html){
					$('#docs_listing tbody').html(html);
					$('#pages').html('');
					$('#docs_listing tbody .paginationControl').appendTo($('#pages'));
					$('#class-listings form').ajaxIndicator('stop');
				});
			},
			openFaq : function(dollarAmount)
			{
				if(!dollarAmount)
					dollarAmount = 100;
				$("#success_dialog").dialog('option','height',600);
				open_success_dialog('Note Taker Position', '<h1>Get paid to take the notes you were already going to take!</h1><h2>Position Requirements:</h2>-Upload your own interpretation of lectures on a weekly basis. <br />-Create a comprehensive study guide for each exam. <br />-Earn a flat rate (Positions starting at $100 guaranteed!)<br />-Earn commissions every time your documents get viewed<br /><br /><h3>Here is a sample study guide one of Note Takers made last semester.</h3><div id=\'embedded_flash\'><a href=\'http://www.scribd.com\'>Scribd</a></div>', 600);
				var scribd_doc = scribd.Document.getDoc(19205921, 'key-2ddem4k8ewvsr14ybftl');
				scribd_doc.addParam('height', 400);
				scribd_doc.write('embedded_flash');
				$('#success_dialog').dialog('option', 'position', 'center');
				return false;
			}
	}
	$.extend(self, methods);
    $.marketPlace = self;
})(jQuery);
$.fn.ajaxIndicator = function(action) 
{
	if(action=='start')
	{
		if(!this.length)
			return false;
		$('#ajax-load-ind').remove(); //In case a different indicator is showing, remove it
		this.after('<img id="ajax-load-ind" style="padding:0px 5px" src="/images/layout/mini-ajax-loader.gif" />');
		return this;
	}
	else
		setTimeout(function(){$('#ajax-load-ind').fadeOut('fast',function(){$(this).remove()})}, 1000);
};
/*
 * jQuery history plugin
 * 
 * The MIT License
 * 
 * Copyright (c) 2006-2009 Taku Sano (Mikage Sawatari)
 * Copyright (c) 2010 Takayuki Miwa
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

(function($) {
    var locationWrapper = {
        put: function(hash, win) {
            (win || window).location.hash = this.encoder(hash);
        },
        get: function(win) {
            var hash = ((win || window).location.hash).replace(/^#/, '');
            try {
                return $.browser.mozilla ? hash : decodeURIComponent(hash);
            }
            catch (error) {
                return hash;
            }
        },
        encoder: encodeURIComponent
    };

    var iframeWrapper = {
        id: "__jQuery_history",
        init: function() {
            var html = '<iframe id="'+ this.id +'" style="display:none" src="javascript:false;" />';
            $("body").prepend(html);
            return this;
        },
        _document: function() {
            return $("#"+ this.id)[0].contentWindow.document;
        },
        put: function(hash) {
            var doc = this._document();
            doc.open();
            doc.close();
            locationWrapper.put(hash, doc);
        },
        get: function() {
            return locationWrapper.get(this._document());
        }
    };

    function initObjects(options) {
        options = $.extend({
                unescape: false
            }, options || {});

        locationWrapper.encoder = encoder(options.unescape);

        function encoder(unescape_) {
            if(unescape_ === true) {
                return function(hash){ return hash; };
            }
            if(typeof unescape_ == "string" &&
               (unescape_ = partialDecoder(unescape_.split("")))
               || typeof unescape_ == "function") {
                return function(hash) { return unescape_(encodeURIComponent(hash)); };
            }
            return encodeURIComponent;
        }

        function partialDecoder(chars) {
            var re = new RegExp($.map(chars, encodeURIComponent).join("|"), "ig");
            return function(enc) { return enc.replace(re, decodeURIComponent); };
        }
    }

    var implementations = {};

    implementations.base = {
        callback: undefined,
        type: undefined,

        check: function() {},
        load:  function(hash) {},
        init:  function(callback, options) {
            initObjects(options);
            self.callback = callback;
            self._options = options;
            self._init();
        },

        _init: function() {},
        _options: {}
    };

    implementations.timer = {
        _appState: undefined,
        _init: function() {
            var current_hash = locationWrapper.get();
            self._appState = current_hash;
            self.callback(current_hash);
            setInterval(self.check, 100);
        },
        check: function() {
            var current_hash = locationWrapper.get();
            if(current_hash != self._appState) {
                self._appState = current_hash;
                self.callback(current_hash);
            }
        },
        load: function(hash) {
            if(hash != self._appState) {
                locationWrapper.put(hash);
                self._appState = hash;
                self.callback(hash);
            }
        }
    };

    implementations.iframeTimer = {
        _appState: undefined,
        _init: function() {
            var current_hash = locationWrapper.get();
            self._appState = current_hash;
            iframeWrapper.init().put(current_hash);
            self.callback(current_hash);
            setInterval(self.check, 100);
        },
        check: function() {
            var iframe_hash = iframeWrapper.get(),
                location_hash = locationWrapper.get();

            if (location_hash != iframe_hash) {
                if (location_hash == self._appState) {    // user used Back or Forward button
                    self._appState = iframe_hash;
                    locationWrapper.put(iframe_hash);
                    self.callback(iframe_hash); 
                } else {                              // user loaded new bookmark
                    self._appState = location_hash;  
                    iframeWrapper.put(location_hash);
                    self.callback(location_hash);
                }
            }
        },
        load: function(hash) {
            if(hash != self._appState) {
                locationWrapper.put(hash);
                iframeWrapper.put(hash);
                self._appState = hash;
                self.callback(hash);
            }
        }
    };

    implementations.hashchangeEvent = {
        _init: function() {
            self.callback(locationWrapper.get());
            $(window).bind('hashchange', self.check);
        },
        check: function() {
            self.callback(locationWrapper.get());
        },
        load: function(hash) {
            locationWrapper.put(hash);
        }
    };

    var self = $.extend({}, implementations.base);

    if($.browser.msie && ($.browser.version < 8 || document.documentMode < 8)) {
        self.type = 'iframeTimer';
    } else if("onhashchange" in window) {
        self.type = 'hashchangeEvent';
    } else {
        self.type = 'timer';
    }

    $.extend(self, implementations[self.type]);
    $.history = self;
})(jQuery);

function newTos()
{
	$("#success_dialog").dialog('option','height',600);
	open_success_dialog('Terms of Service Update', '<h2>Welcome back to Notehall!  We are now a part of Chegg.com! Please agree to the new terms of service and privacy policy  : )</h2> <br /><br /><div id=\'embedded_flash\'><a href=\'http://www.scribd.com\'>Scribd</a></div><br /><br /><form action="/index/agreement" method="post"><input type="checkbox" name="agree" value="agree" checked="checked" /><input type="submit" value="Submit" /></form>', 600);
	var scribd_doc = scribd.Document.getDoc(19205921, 'key-2ddem4k8ewvsr14ybftl');
	scribd_doc.addParam('height', 400);
	scribd_doc.write('embedded_flash');
	$('#success_dialog').dialog('option', 'position', 'center');
	return false;
}

