Mozilla Firefox margin spaces

When I try to use 开发者_如何学JAVAa statement like document.write() with object tag parameters in Javascript part of a webpage, Mozilla Firefox seems to put extra marginal spaces on the edges of the page while other browsers behave normally. What is the reason of this difference? How can I get rid of these marginal spaces?

Note: (I'm trying to load an applet in a web application.)

---

I think the real answer here is "don't use document.write" :-) See this related SO post for why: Why is document.write considered a "bad practice"?

So what should you do if not document.write? Well, ideally JQuery (it's all but a requirement for writing JS nowadays IMHO). With jQUery your problem is as simple as:

$(document.body).append(
  "<object><embed type = 'application/x-java-applet;version=1.5' \ CODE = ...");

If you don't want to use jQuery (not-so-subliminal message: use jQuery!) you can also use either innerHTML (as Kiva suggested), or document.createElement + document.body.appendChild to add the element to the page.

I suspect if you use any of these techniques, instead of document.write, you'll see similar behavior to just having the element there in the HTML in the first place.

---

What is your code ?

Maybe Firefox add a default margin for applet application, try to look at this with firebug.

---

Maybe the problem in the CSS. May be about to fix this situation:

html, body{margin: 0; padding: 0;}