Facebook use the following algorithm to position their login popup window: function PopupCenter(url, title, w, h) { window.open () takes three arguments. If you need to automatically center the popup … The syntax to open a popup is: window.open(url, name, params): url An URL to load into the new window. Or Advertisements usually pop up when you visit a web page or when you exit a page. If you need to center the Window, then either center it in its refresh event or set explicit dimensions. We will use a button to trigger the pop up window -->. Use the HTML < form > tag add a form for user input. var left = (screen.width/2)- (w/2); kendo.ui.Window - Returns the Window object to support chaining. For example, center and open the Window with a single expression. Example How to show an image in a pop-up window. var width = 500; Open a new link from a button: 8. From the Images menu, select Add images.... Browse to the location of the folder you'd like to add and select the popup window xp javascript images. Popup window animation (fly across screen) 5. Then, create your fields for your form. var userAgent = navigator.use... Due to the complexity of determining the center of the current screen in a multi-monitor setup, an easier option is to center the pop-up over the p... To open a new window using HTML, see HTML Open New Window. Open a JavaScript popup window in the center of the screen. popup window not stay on the screen How do I use translate() to keep my player in the center of the screen while it is moving? Give a class to your form to add a style for it, and id for connecting to the script. Automatically Center Your Popup The following page has code for automatically centering your popup in the middle of the users' window, as well as other little snippets of code. left:... try it like this: function popupwindow(url, title, w, h) { Make Popup Appear in Center. xxxxxxxxxx. Hope it may save many additional lines of javascript code. Just change the top variable to any other name and try again var w = 200; popupWindow = window.open(url,'popUpWindow','height=500,width=500,left=100,top=100,resizable=yes,scrollbars=yes,toolbar=yes,menubar=no,location=no,directories=no, status=yes'); } The above script creates a function that accepts a parameter called "url". Thank you!!! name A name of the new window. Click on the button at the bottom of this page to open the login form. How to open new window (popup) and center on screen Method 1: Center a popup window on screen Here is a java script function that opens a new window (popup) and puts it on center of screen: With new suggested improvements thanks to long beach web design