So, I have this form/datagrid thing. I want to have a button that
clears the fields (not a reset, which would set them to the default
state, I want them blank.) For various reasons, getByClassName seemed
the best way to deal with this.
Everything was fine on Moz/Firefox. Safari seems fine. But IE...
Some detective work later, it seems that the problem is caused by
*another* field on the page. (With it, problems; without it, no
problems.) More detective work suggests that the problem is the field's
name ("length").
More precisely, it seems getElementsByClassName in IE (6 and 7, at
least) will fail to gather elements (returns zero-length array) if
there is an input on the page with 'name="length"'.
Solutions: Change the name of the input, or use the optional parent
argument to avoid it.
More: Looking at the getElementsByClassName declaration in
prototype.js, I'd guess this is really a problem with $A or
getElementsByTagName, but that's as far as I got.
Demo: http://www.thewehners.net/joshua/test_ie_length.html
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