From external JS script I use document.readystate to determine whether the document is loaded.
If its not loaded I attach Onload event listner.
However when I run the script from IEPRO (similar to FF greasemonkey) on IE7 document.readystate returns 'undefined'. (I guess that IE7PRO runs the script after the document has loaded already).
How can I tell if the document is loaded or not in other ways that will work across browsers?
Clarifications (following first two answers): 1.My question is not how to perform onload attaching. My question is how to determine whether the document (or DOM) has already loaded in other means than document.readystate
- I cant change the document. my script is an addon to random pages I have no control of.
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The only cross-browser way of doing this, that I know of, is to attach a function to the
loadevent ofwindow; this script should probably go in thehead. When this fires, set a boolean so that you know everything is loaded later.The Prototype library does this; see
function fireContentLoadedEvent()in the source. -
You can do this in body.onload:
<body onload="document.ready=true;">...This JavaScript will be executed after the document has been loaded. Just wait until
document.readyis true (or no longer underfined).The better way is to call a JS function in onload which then invokes your external script. This doesn't involve busy waiting but mmigth not work in your case. If you load the external document in a frame, you can store the function to call in the parent document and use "window.parent.function()" from the nested document.
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I am not sure of your whole conclusion but sounds like you can just use jquery and set up your code like this:
<script language="javascript" type="text/javascript"> $(document).ready(function(){ //have all your code of what you are trying to do here // // }); </script> -
The help site for IEPRO UserScripts seems to indicate they run after the page is loaded. So why do you need to check if the page is loaded?
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