onload alert

About the onload event of the Image object. What you want to obtain is the width and height of the image. Therefore, the onload method is used. In addition, the remote image is obtained. However, when IE displays the image for the second time, the onload method is always not used. Code: Var img = new Image (); Img. src = "loading.gif "; Img.

Window. onload must have been used by everyone. It is executed during window loading. How can we determine if window. onload is used multiple times? Next, I will share with you a method window. onload that must have been used by everyone. It is executed during window loading. How can we determine if window. onload is u

In the past two days, a simple image Viewer is created, where "Previous Page" and "next page" are used, new image () is used for image loading, and the src attribute of image is set, everything works properly in Google Chrome/Opera/Firefox;CodeAs follows: 1 VaR I = New Image (); 2 I. src = _ This. settings. IMGs [_ this. currindex]; 3 // Baidu. Dom. Show (Baidu. Dom. Query (selectpre + '# loading') [0]); 4 I. onload = Function (){ 5 Image.

There are two types of page loading events: ready, indicating that the file structure has been loaded (excluding non-text media files such as images), and onload, indicates that all elements, including images, are loaded. (You can say: ready loads before onload !!!)Generally, the style is controlled, and the slice size is controlled to be loaded in onload;The jS

There are two types of page loading events: ready, indicating that the file structure has been loaded (excluding non-text media files such as images), and onload, indicates that all elements, including images, are loaded. (You can say: ready loads before onload !!!) Generally, the style is controlled, and the slice size is controlled to be loaded in onload; The

when using onload to get an element, it is recommended that you define the name of the element you want to get before the OnLoad event, and that only the fetch operation is performed in OnLoad, so that the acquired element will be used successfully later.DOCTYPE HTML>HTMLLang= "en">Head> Metahttp-equiv= "Content-type"content= "text/html"CharSet= "UTF-8"> ti

Original source First Page_Load is a method, and onload is a method. OnLoad is the page class inherits from System.Web.UI.TemplateControl, and System.Web.UI.TemplateControl inherits from System.Web.UI.Control. So strictly speaking, the onload is a method that belongs to System.Web.UI.Control. Also page has a load event that is also the same inherited from System.

Copy codeThe Code is as follows :/* 1. obj is equivalent to window 2. type is equivalent to onload 3. fn is equivalent to an anonymous Function */ Function addEvent (obj, type, fn ){ Var saved = null; // The user saves the previous event If (typeof obj ["on" + type] = "function "){ Saved = obj ["on" + type]; // The user saves the previous event. }; // Execute the event Obj ["on" + type] = function (){ If (saved ){ Saved () }; Fn (); };

Wait for the page to finish loading before executingExecutes a piece of JavaScript immediately after the page is loaded:onload="load()">Try it yourself.Browser support IE Firefox Chrome Safari Opera The OnLoad property is supported by all major browsers.Definition and usageThe OnLoad property is triggered when an object i

Yesterday, we used the jQuery plug-in aeImageResize to find it more advantageous: after each image is loaded, it will immediately perform proportional scaling.This is attributed to the onload of the Image object loading event.Check the source code of the plug-in and find that it also depends on the complete attribute of the image object and the onload event, and especially treats IE6 differently. In the end

The onload event about the Image object.What you want to get is the width and height value of the image. So use the OnLoad method. In addition, a remote picture is obtained.But IE in the second display of pictures, always do not go to the OnLoad method. Code: var img = new Image (); IMG.SRC = "Loading.gif"; Img.onload = function () { var iheight = img.height

Yesterday, with the jquery plug-in aeimageresize, found that it has more advantages: each picture after loading, will be immediately to zoom. This is attributed to the loading event of image object image onload. View the source of the plug-in, found that it also relies on the image of the object's complete properties and onload events, and particularly IE6 differentiated treatment, in the end IE6 in the pic