Hi all!

I am newbie in JS and have already met next problem:

I've got a form:

<form method="post" action="#" style="position: relative;">
       <input type="file" id="filefield" class="invisible" value="" />
</form>

And simple img tag and can't make .click(); function work in Firefox and Opera (It works great in IE and Safari):

<img src="button.gif" onclick="document.getElementById('filefield').click();" />

Can anyone tell me how to solve this problem? thx...

It is impossible to use the click() method on an input element of type file in Firefox. (I assume Opera does the same.) The reason for this is security, although the click() method by itself is mostly harmless. Firefox actually blocks most JavaScript methods and CSS properties on input type files.

I can guess from your code samples that you are trying to replace the ugly default browse button. This can be done, but in a different method, which is based around the CSS opacity property.

See http://www.quirksmode.org/dom/inputfile.html for a tutorial on one way to do this.