Load More Data On Scroll Javascript

Browsers store history so that pages load quickly when the user clicks back. scroll(options) Parameters. This simple tricks to solve the problem of making table body scroll-able with fixed table headers. Net in the window scroll event of jQuery I am calling the GetRecords JavaScript method which makes an AJAX call to the server and. it shows data from where. data() is useful for getting the Infinite Scroll instance in JavaScript, after it has been initalized. Ajax is how we send data to files when an event happens in javascript. Note: This is a low-level method; a more convenient. Like the original, it is published under the Creative Commons Attribution, Non Commercial - Share Alike 2. The scroll silently narrates you through the range of human ideology. 10 is the current release and is now available. Oracle Database – more value for money and more value for free Use OCI Monitoring, Alarms and Notifications for Your Own Custom and Functional Metrics Welcoming the Data Catalog Service on Oracle Cloud Infrastructure. Ajax Load More examples are simply previews of what is possible to achieve with the plugin - CSS and HTML markup for these examples are not provided. Further we'll meet other topics and more complex situations when JavaScript must be used. A vue plugin for nesting scroller ,you can use it to expand more. function popitup(url) { newwindow=window. *fruity dreams. With its robust array of options, methods, and events, you can add custom behaviors, notifications, and loading animations to fully integrate Infinite Scroll into your user experience. I put together a basic infinite scrolling demo page just for this article. You can have more than one HTML forms in a single page. The following snippet will watch for clicks on any link that points to an anchor and smoothly scroll down to it:. This will. When the user reaches the end of the web page, the data is retrieved from the MySQL database and new content is loaded in the web page while scrolling the page down. the answer is very simple: I have defined a parameter in the grid not to use buffered scroll if number of records below 300. To get further details about these properties and the possible event handler registration methods, please see the page for the event object. Use this methods only in case you have added infinite scroll content after page init or if you want to enable it later. It should normally be included in the head tag of your html (typically before any script tags). Infinite scrolling with jQuery when page’s bottom has been reached. i try many time but my badluck. And for something in a totally different direction, here is Eric Johansson’s cutesy website with its own scroll bar at the bottom of the page. Learn about JavaScript and how is it different from Java technology. We've used hex colors for years but 8-digit hexadecimal. jQuery: The Write Less, Do More, JavaScript Library. This browser support data is from Caniuse, which has more detail. Efficiently load JavaScript with defer and async When loading a script on an HTML page, you need to be careful not to harm the loading performance of the page. Load more data when the user scrolls down till the end of the page. Note: All of the HTML codes and tutorials are by Shelley Lowery. This will scroll the page down to #target-element over a period of one second (1,000 milliseconds = 1 second). In the two examples above, if the current document does not contain an element with an ID of "result," the. ), what kind of data we expect to receive, how to react when the request succeeds or fails, and much more. An example of a slightly more complex data structure is the graph from Chapter 7. The following snippet will watch for clicks on any link that points to an anchor and smoothly scroll down to it:. We create an object and we add the infiniteScroll. For example, the current URL is /news/alpha, and its next link /news/beta; and when you load /news/beta, its next link is /news/gamma. If you need to tune this threshold to improve. Loading of new items happens when the scrollbar of the Grid reaches its end. Until I facing problem, when I put the scroll to bottom then I refresh the page, the function is load but it always show double data. If Java is already installed but applets do not work, you need to enable Java through your web browser. Code included inside $( document ). Unobtrusive JavaScript. To do so, you can use a nextURL variable and update it on load, then set path to a function to return nextURL. This script helps you to display little data and make faster your website. Angular UI Grid. com - The best FOSS CDN for web related libraries to speed up your websites! cdnjs. Protect your device from loss, data theft, and more. If you don't already know, endless scrolling (or infinite scrolling or pagination) is a popular technique amongst modern websites such as Google Reader and Live Image Search, whereby instead of paging through items using traditional. We create an object and we add the infiniteScroll. Use Bootstrap’s JavaScript modal plugin to add dialogs to your site for lightboxes, user notifications, or completely custom content. The Ajax model involves using a web API as a proxy to more intelligently request data rather than just having the browser reload the entire page. AOS detects the page scroll events and animate specified elements when they're scrolled into view. We recommend Highslide JS for anyone who wants to shine!. In these cases you'll most likely want a way to access the entered data from the calling page for further processing (instead of just submitting it). Beyond dragging an event to a different time/day, you cannot change an event's name or other associated data. Dragscoll is an open source JavaScript library which lets you achieve this with just few lines of code. share | improve this answer. Note: This is a low-level method; a more convenient. Load nodes on demand from the server in javascript tree. In addition, you have to load the window into a JavaScript variable. In these cases you'll most likely want a way to access the entered data from the calling page for further processing (instead of just submitting it). load - not only HTML is loaded, but also all the external resources: images, styles etc. js 57450 views - 09/23/2013. Change the update interval to something like 250 milliseconds:. Sencha - Java and JavaScript Frameworks and UI Components. For this tutorial I’ve set up a demo page all about pizza. In short we have make Ajax Scroll down pagination with PHP. Large selection of reviewed shareware and freeware software. Poorly written JavaScript code can slow your website, negatively affecting load times and rendering speed. Clicktale tells the story of your customer's behavior. Using our intuitive ‘Drag and Drop’ development environment you can have your game up and running in a matter of minutes without ever having to write any code!. Loading: Gets displayed when the grid is loading data. Sound a one-minute alert by remote control. May 19, 2019. Scroll end event fire. NET page - whether you're using a master page, where the TextBox exists in the ASP. Don't use data attributes from multiple plugins on the same element. Here I will explain how to use jQuery to show hide div element on scroll position or show hide div on scroll position in jQuery or show / hide element on scroll jQuery. Easy start, powerful build. Here Mudassar Ahmed Khan has explained how to maintain scroll position of HTML DIV on PostBack in ASP. data() is useful for getting the Infinite Scroll instance in JavaScript, after it has been initalized. html { scroll-behavior: smooth; } And before you reach for a library like jQuery to help, there is also a native JavaScript version of smooth scrolling, like this:. Unfortunately, these features come at a price: you must often rely on heavy Javascript libraries that can add dozens or even hundreds of kilobytes to your page. By Benoît Boucart 13 Apr 2014 Then, we need to declare some variables at the top of the Javascript document (don't forget to load jQuery & Modernizr - needed to check if it's a "touch" device). Version history for Winamp Full < Shrouded in darkness; #b-navbar { height:0px; visibility. InfiniteScroll. ag-Grid is a feature-rich data grid supporting major JavaScript Frameworks. Now that you know what it is, let's look at some examples. click () method is replaced with. This allows users to overlay features from two or more time-aware layers with different time extents. Use it sparingly or performance will suffer. NET page loads the control, you need to focus on is not visible because it is further down the page. AOS detects the page scroll events and animate specified elements when they're scrolled into view. A hot trend in web design these days is the use of sticky headers, where the top portion of a page containing essential elements such as the menu bar once scrolled past becomes fixed on the page, continuing to remain visible. The endless scrolling functionality enables the Grid widget to display large amounts of data by appending additional pages of data on demand. The SettingsSlideShow property provides access to the following properties related to slide show functionality. It works very well on desktop and laptops. The optional data parameter specifies a set of querystring key/value pairs to send along with the request. js lets your elements enter the viewport from the bottom of the page but you. It is estimated that if a page doesn't load in 8 seconds you will lose 1/3 of your visitors. I typically allow D3 to load all the data, and then make modifications in a post-processing step, but it might be more effective for you to be more explicit with the modifications. Like the original, it is published under the Creative Commons Attribution, Non Commercial - Share Alike 2. Installation: # Yarn $ yarn add [email protected] # NPM $ npm install [email protected]--save How to use it:. In addition, you have to load the window into a JavaScript variable. Use Sencha's cross-platform tools to design, develop, and test data-intensive web applications, UI frameworks and testing solutions. Create animated & interactive charts with hundreds of thousands of data records using the ZingChart JavaScript charting library. Net where database records are fetched dynamically on browser page scroll down using jQuery AJAX. load(function() {// script}) for more detail about $(document). Trigger CSS animations on scroll. The code base is currently being rewritten on the 2. For this post, we'll go without a plugin or package and we're going to be writing a simple JavaScript function that fetches a new set of data when scrolled to the bottom of the browser window. When you get the scrolling performance right your application will feel silky smooth and enjoyable to use rather than a clunky and unnatural experience. react-infinite-scroll-component. JavaScript was not developed at Sun Microsystems, the home of Java. This can generally be seen as an alternative method to pagination for displaying a large table in a fairly small vertical area, and as such pagination has been disabled here (note that this is not mandatory, it will work just fine with pagination enabled as well!). NET page loads the control, you need to focus on is not visible because it is further down the page. Fetching data from the server. your online bank). If true, the infinite scroll will be hidden and scroll event listeners will be removed. JavaScript was not developed at Sun Microsystems, the home of Java. Notice that the grid will load more data when you bring the scroll all the way to the bottom. For the purpose of this tutorial, I'm going to gloss over the details of building the service. You can add custom offsets per element, or set offsets on the viewport (e. Infinite Scrolling in Rails: The Basics Pagination is a very common and widely-used navigation technique, and with good reason. x3 christitle> window. always trigger after the element reaches 20% of the viewport). By default, the Grid has no set height and expands to fit all table rows. NET control hierarchy, and so on - when the TextBox control is rendered into an element the id attribute may be a bit different than the server-side ID property (txtName). Here Mudassar Ahmed Khan has explained how to maintain scroll position of HTML DIV on PostBack in ASP. The data is definitely in the Session[] store as i expected it. *Forever This Number Four* @import url(https://www. Scroll animations. Config name: browser. For example, the current URL is /news/alpha, and its next link /news/beta; and when you load /news/beta, its next link is /news/gamma. The resize and orientationChange events are equally important. Instead of loading the entire web page and rendering it to the user in one go as in bulk loading, the concept of lazy loading assists in loading only the required section and delays the remaining, until it is needed by the user. In jQuery by using window. This demo uses button to show that Infinite Scroll will not attempt to load page 5 and that the button will be hidden when there are no more pages to load. Drive better business decisions by analyzing your enterprise data for insights. Ajax Load More is the ultimate WordPress infinite scroll plugin for lazy loading posts, single posts, pages, comments and more with Ajax powered queries. Additionall, there is a helper. Holding Shift as a modifier will go forward a page if the value is set to 0 and scroll down if the value is set to 1. Compatible with All Browsers and IE7+. js - d3-timeline " Michael September 3, 2019. This tutorial shows how to call a javascript function on page load using various plain JavaScript functions and using JQuery on document ready. JSException: Unknown name and. This tutorial about my favorite place Dzone like data loading while page scrolling down with jQuery and PHP. x-coord is the pixel along the horizontal axis of the document that you want displayed in the upper left. Load More Data from Database On Page Scroll (PHP/jQuery) Load More Data using Ajax Jquery with PHP MySql Javascript Scroll Tutorial Load Dynamic Content Into Page When User Reaches Bottom. When user scroll the content, whichever is visible it should start loading more data for it. In this tutorial we will create a system which will load results from database on page scrolling. Office and Operating Room Tour/title> document. This number also may vary depending on how many results load when you connect to the page. A few days ago one of my colleagues asked me how to load data into the UL when we do scroll. For this tutorial I’ve set up a demo page all about pizza. If one or more space characters are included in the string, the portion of the string following the first space is assumed to be a jQuery selector that determines the content to be loaded. Now let's see how we can use intersection observer in JavaScript to lazy load images using this markup pattern:. It's designed to speed up page loading times and decrease traffic to your customers and users by only loading the content in view. If you’re familiar with them, you may have noticed that in several of the application templates we use a. Visit ZingGrid. scrollIntoView(top) scrolls the page to make elem visible. #Phase3 — Setup up observable stream. In the example below, the HTML page already has the first 10 rows of data available it in, so we use deferLoading to tell DataTables that this data is available and that it should wait for user interaction (ordering, paging etc) before making an Ajax call. The scroll gap is the amount of scrolling that is left to go before DataTables will load the next 'page' of data automatically. This tutorial resides in the JavaScript video index under the Scroll Programming section. Instead of that - it splits the list to clusters, then shows elements for current scroll position and adds extra rows to top and bottom of the list to emulate full height of table so that browser shows scrollbar as for full list. Dynamic Circular Progress Bar with jQuery and CSS3 94102 views - 09/15/2015 Animated Circle Progress Bar with jQuery and SVG - asPieProgress 60192 views - 09/11/2017 Automatic Page Load & Ajax Request Progress Bar - Pace. In the JSONP usage pattern, the URL request pointed to by the src attribute in the element returns JSON data, with JavaScript code. Passing data to the handler. Incorporate the Facebook SDK for JavaScript into your jQuery-based web app. When they then return to their completed form, all the data has been cleared. The required URL parameter specifies the URL you wish to load. When you scroll downward, toward the “bottom” of the page, it simply loads more content, providing an ever-growing and seemingly never-ending amount of material. Working with JavaScript in RailsThis guide covers the built-in Ajax/JavaScript functionality of Rails (and more); it will enable you to create rich and dynamic Ajax applications with ease!After reading this guide, you will know: The basics of Ajax. It is a highly flexible tool, based upon the foundations of progressive enhancement, which will add advanced interaction controls to any HTML table. This functionality has a power to do infinite loading data from the database Load more is usually seen on a website that has no pagination in the page. There is a better alternative to display voluminous data (especially read only data) while providing a better user experience & also making efficient use of server bandwidth - the Continuous Scrolling or Infinite. js 57450 views - 09/23/2013. A boolean value that specifies whether to show the mobile-optimized version or not. connect your iPhone, Under the Backup section Click on Restore backup button, Select and Restore. You left me alone here:( @import url(http://www2. For example, Google maps lets you scroll the map horizontally and vertically by dragging the map using mouse button. Well, Java (and its cousin, JavaScript) are programming languages that allow small programs (or applets) to run on your computer when you launch a Web site. Also, we must import sigma and add a script tag that will contain the JavaScript code. You can also display a Share button next to the Like button to let people add a personal message and customize who they share with. Coordinates. A high-level definition. However, using innerHTML requires some preparation if you want to be able to use it easily and reliably. Here Mudassar Ahmed Khan has explained how to implement Infinite Scroll or Endless Scroll technique in ASP. Image Picker is a simple jQuery plugin that transforms a select element into a more user friendly graphical interface. com is a community for Developers and IT Professionals. Instead of that - it splits the list to clusters, then shows elements for current scroll position and adds extra rows to top and bottom of the list to emulate full height of table so that browser shows scrollbar as for full list. Loading data from the server using AJX will help any application in improving its performance because data which is displayed on the screen alone is loaded the first time and more data, if required, will get loaded from the server as the user scrolls. inc","content":" Follow Us On Facebook\/span. Select language English (US) Bahasa Indonesia Čeština Dansk Deutsch English (UK) Español Français Italiano Magyar Nederlands Norsk bokmål Polski Português (Brasil) Português (Europeu) Română Slovenčina Suomi Svenska Filipino Tiếng Việt Türkçe Ελληνικά Русский Ukrainian ภาษา. Instead of using our normal font loading JavaScript API to initiate a download, we simply embed the web font as a inline Data URI directly in the markup. Loading all the data at once will take much time and as a result page load time increase. Masonry is a JavaScript grid layout library. First, the example focuses on schema issues, including inferring a schema from the loaded IDataReader, and then handling incompatible schemas, and schemas with missing or additional columns. You can also display a Share button next to the Like button to let people add a personal message and customize who they share with. Definition and Usage. Short tutorial on scraping Javascript generated data with R using PhantomJS. For example, the current URL is /news/alpha, and its next link /news/beta; and when you load /news/beta, its next link is /news/gamma. Quiñones is also a member of the National Association of Academic Advisors (NACADA. Installing and using add-ons If you're missing an add-on that you need to view a page, Internet Explorer will let you know, and will prompt you to install the add-on. To learn more about ScrollMagic check out the the examples and read the documentation. No matter what that obstructs me, i will overcome it with. A vue plugin for nesting scroller ,you can use it to expand more. Use it sparingly or performance will suffer. In this tutorial we will create a system which will load results from database on page scrolling. Removing Turbolinks was the only (temporary) option to fix this problem. By default scrollReveal. Ever wondered how some sites seem to have endless scrolling page with no pagination? Find out how easy it is to do this in Rails in this episode. The scroll event works for all scrollable elements and the window object (browser window). Think of it as an inline two level menu. Easy start, powerful build. loading div's on the drop down box. If one or more space characters are included in the string, the portion of the string following the first space is assumed to be a jQuery selector that determines the content to be loaded. Works great on both single and multiple select elements. Tap on More tab in Facebook App → Help and Support → Report a Problem → Something isn’t Working → Now, you need to choose what’s not working for you and give a brief explanation about the issue and then send it. but somtimes we just wanna be someone. The resize and orientationChange events are equally important for lazy loading. I'd rather wait an extra few seconds at the beginning of the page's load and be able to scroll smoothly all the way to the bottom, than start scrolling and get hung up every 300px. See more examples. Webslesson 19,769 views. This will scroll the page down to #target-element over a period of one second (1,000 milliseconds = 1 second). We want to create a pop box (probably with scroll bar) for the Terms & Conditions. NET page - whether you're using a master page, where the TextBox exists in the ASP. Initially, we will show a limited number of results on page load. How to Submit a Form Using JavaScript; JavaScript Form Validation Script: More features; Doing real-time calculations in a form using JavaScript; jQuery disable button on click to prevent multiple form submits; Understanding JavaScript Variables; Using Try…Catch in JavaScript; A Modern Reintroduction To AJAX. Infinite scroll implementation. Scroll in Selenium. Load json data in javascript tree. When scrolling with the vertical scrollbar, the datagrid executes ajax requests to load and refresh the existing records. Declarative views make your code more predictable and easier to debug. Be sure to visit the documentation to learn more. Scroll to Top buttons allow your website visitors to easily scroll back to the top of your page with one click of the button. Even after installing Java, Applets do not run. Load Data on Scroll use Ajax to load external content from database using jQuery. Dragscoll is an open source JavaScript library which lets you achieve this with just few lines of code. Let’s say we gather data about how the page is used: mouse clicks, scrolls, viewed page areas, and so on. For instance, Markdown is designed to be easier to write and read for text documents and you could write a loop in Pug. Posts related to Load Data while Scrolling Page Down with jQuery and PHP Create a Twitter-Like “Load More” Button with jQuery and Ajax This is one of the best tutorial, which describe step by step to create Create a Twitter-Like “Load More” button page. How To Write Evaluation Essays - With Sample Paragraph/title. Reading TSV Files CSV is probably the most common flat file format, but in no way the only one. In this example the class of the #loader element is used. title> var a1 = ;var a2 =;var delay = 600;b1. Nowadays, more and more websites start to use infinite scrolling to replace the classic pagination. Our support team does not offer assistance or. Load data while Scrolling Page down with jQuery AJAX and ASP. ngInfinite Scroll follows semantic versioning. Priority+ Scrolling Menu FF2+ IE10+ Opr8+ A one line horizontal menu that uses the mouse or swiping (on touch screen devices) to scroll though any obscured links. but somtimes we just wanna be someone. Browsers store history so that pages load quickly when the user clicks back. It doesn’t matter what. We'll use this to learn how to have animations triggered by scrolling, and investigate ways we can do so efficiently. But I'm having a problem. js is a dirt simple parallax scrolling effect inspired by Spotify. This allows users to overlay features from two or more time-aware layers with different time extents. Date created: Aug 1st, 2013. Cookies are used to store data that needs to persist between requests. Avoid the following sinkholes to achieve a strong infinite scrolling experience: Users want immediate access to exclusive data. This article will demonstrate how to load data from the server while scrolling. Multi Page Animations with jQuery, CSS3 and Velocity. griddle-react - Simple Grid Component written in React. However, when you load 1 lakh of records at a time, it takes more time to render the result. There is a better alternative to display voluminous data (especially read only data) while providing a better user experience & also making efficient use of server bandwidth - the Continuous Scrolling or Infinite. Infinite Scrolling in Rails: The Basics Pagination is a very common and widely-used navigation technique, and with good reason. Repository Settings Click on the Settings tab and scroll down to the GitHub Pages section. If you copied and pasted the basic Bootstrap template like we did in our installation tutorial, this step is already completed. html { scroll-behavior: smooth; } And before you reach for a library like jQuery to help, there is also a native JavaScript version of smooth scrolling, like this:. Loading data from the server using AJX will help any application in improving its performance because data which is displayed on the screen alone is loaded the first time and more data, if required, will get loaded from the server as the user scrolls. Just remember to use button’s ID (btn-example-load-more in my example) in the JavaScript code. com is a community for Developers and IT Professionals. If you missing some data on your iPhone, So we can restore the old latest backup using finder as well. js 57450 views - 09/23/2013. Note that there are actually more than 38 results on the web page. Warning: Custom coding features are provided as-is and may require programming knowledge to implement. Data Loading in D3. Browser support. However, using innerHTML requires some preparation if you want to be able to use it easily and reliably. css transitions such as. If you want to opt-out, download and install the add-on for your web browser. Introduction. Featuring the latest innovations in simplified operations, performance, and security, HPE iLO allows you to manage your entire server environment with ease. KAGOME商会へようこそ(´・∀・`)⊃. Scroll down to see blur up images. In order to avoid the problem, either we need to use paging concept or lazy loading. In this tutorial we will create a system which will load results from database on page scrolling. Visit ZingGrid. A few days ago one of my colleagues asked me how to load data into the UL when we do scroll. 0 View on GitHub Check out v2. Loading URLs from loaded pages. on() and is not null or undefined, it is passed to the handler in the event. In jQuery, check whether you have hit the bottom of page using scroll function. jQuery & Html5 Based Background Parallax Scrolling Effect. title> var a1 = ;var a2 =;var delay = 600;b1. After creating the Document object, but potentially before the page has finished parsing, the user agent must update the session history with the. There are a number of other properties that will also be used to maximise the performance benefits offered by Scroller: ajax or data - Data for the table. View Javascript questions Load data dynamically on page scroll using jQuery, AJAX, and ASP. NET MVC; Displaying a grid of data is one of the most common tasks faced by web developers. The $(window). The SettingsSlideShow property provides access to the following properties related to slide show functionality. It may be off putting to the u ser, while loading the records. FullCalendar is great for displaying events, but it isn't a complete solution for event content-management. The grid uses row and column virtualisation, animation frames and many other techniques. Help for Yahoo Account Select the product you need help with and find a solution. As mentioned, the spec has been changing rapidly in the past year and there are already properties that are considered outdated, though are still good to know from a legacy support standpoint. A mouse click or drag on the scroll bar, dragging inside the element, pressing the arrow keys, or using the mouse's scroll wheel could cause this event. scroll() method scrolls the window to a particular place in the document. on() and is not null or undefined, it is passed to the handler in the event. As an example, take an app drawer with a large number of items that the user may have to scroll through. This WebView does not have full feature parity with Chrome for Android and is given the version number 30. - Be sure not to include personal data. What is the best UX pattern to display products on an e-commerce website: pagination, a “Load more” button or infinite scrolling? At Baymard Institute, we’ve conducted several year-long large-scale **usability studies** of more than 50+ leading e-commerce websites. It is preloaded in the background and be cached by the browser once loaded. Ajax is how we send data to files when an event happens in javascript. In short we have make Ajax Scroll down pagination with PHP. Here Mudassar Ahmed Khan has explained how to maintain scroll position of HTML DIV on PostBack in ASP. It covers how to implement pagination in android recyclerview. It works by placing elements in optimal position based on available vertical space, sort of like a mason fitting stones in a wall. The scroll event works for all scrollable elements and the window object (browser window). A scroll loading component for vue. Infinite scrolling using jQuery Ajax and ASP. AOS is a standalone JavaScript library which uses CSS3 animations to animate elements on vertical page scrolling. Hi everybody! 1. D3 can handle different types of data defined either locally in variables or from external files. First, you must give the element you wish to change an id. This article shows how to load on-demand data into a Webgrid on a scroll using ASP. Flutter tutorial Part 5: Listview pagination, scroll up to load more. site2preview. js is a JavaScript library for manipulating documents based on data. This will toggle the 'visible' class when the element comes into the viewport, and toggles the 'invisible' class when it scrolls out of the viewport. Net where database records are fetched dynamically on browser page scroll down using jQuery AJAX. Dragscroll. js, there is no need to include this—it's already there. Repository Settings Click on the Settings tab and scroll down to the GitHub Pages section. AOS detects the page scroll events and animate specified elements when they're scrolled into view. Load more data when the user scrolls down till the end of the page. See more examples. In the first part of the HTML form tutorial we saw how to create a basic form using simple text boxes. There are lots of powerful tile manipulation functions: swap tiles, replace them, delete them, add them and update the map in realtime. Custom data attributes are intended to store custom data private to the page or application, for which there are no more appropriate attributes or elements. pageIndex ); InfiniteScroll. The next two functions are the ones used for scroll calculations.