If you don’t want to explicitly assign window.onload or use a framework, consider: <script type=”text/javascript”> function startClock(){ //do onload work } if(window.addEventListener) { window.addEventListener(‘load’,startClock,false); //W3C } else { window.attachEvent(‘onload’,startClock); //IE } </script> http://www.quirksmode.org/js/events_advanced.html
The other answers all seem out of date First off, putting scripts at the top and using window.onload is an anti-pattern. It’s left over from IE days at best or mis-understandings of JavaScript and the browser at worst. You can just move your scripts the the bottom of your html <html> <head> <title>My Page</title> </head> … Read more
At the time window is loaded the body isn’t still loaded therefore you should correct your code in the following manner: <script type=”text/javascript”> window.onload = function(){ window.document.body.onload = doThis; // note removed parentheses }; function doThis() { if (document.getElementById(“myParagraph”)) { alert(“It worked!”); } else { alert(“It failed!”); } } </script> Tested to work in FF/IE/Chrome, … Read more
Use the iFrame’s .onload function of JavaScript: <iframe id=”my_iframe” src=”http://www.test.tld/”> <script type=”text/javascript”> document.getElementById(‘my_iframe’).onload = function() { __doPostBack(‘ctl00$ctl00$bLogout’,”); } </script> <!–OTHER STUFF–> </iframe>
It sounds more like the problem is that, when the data is cached, the load event fires before you attached the handler. What you can try is to reset the data attribute once you attached the event : object.addEventListener(‘load’, onload_handler); // reset the data attribte so the load event fires again if it was cached … Read more
This solution is now deprecated since jQuery 3.0: https://api.jquery.com/bind/#bind-eventType-eventData-handler You’ll want to use: $(document).ready(function() { /* your code */ }); To make something happen onload. If you want something to work onload and onresize, you should do: onResize = function() { /* your code */ } $(document).ready(onResize); $(window).bind(‘resize’, onResize);
Programmers that have worked with VB6 tend to put a lot of code in the Load event, in VB6 that event was used to initialize the form. But that’s not appropriate anymore in Windows Forms, the Form class can have a constructor. The .NET way is to initialize class objects in the constructor, there are … Read more