Dynamic opacity

[Simon]

In IE I have a routine that dynamically assigns objects' opacity. This works
fine for some elements but not for others.
It works for buttons and inputs but not for img, span and select.

This is the line that sets opacity from a loop through all elements:

document.forms[0].elements.style.filter =
"progidXImageTransform.Microsoft.Alpha(opacity=" + FadeOpacity + ")";

Any ideas?

Thanks IA, Simon

 

[Martin Honnen]

In IE I have a routine that dynamically assigns objects' opacity. This works
fine for some elements but not for others.
It works for buttons and inputs but not for img, span and select.

This is the line that sets opacity from a loop through all elements:

document.forms[0].elements.style.filter =
"progidXImageTransform.Microsoft.Alpha(opacity=" + FadeOpacity + ")";

Any ideas?

Have you looked at the documentation on msdn.microsoft.com?
http://msdn.microsoft.com/library/d.../author/dhtml/reference/properties/filter.asp
It clearlys says that "an object must have layout for the filter to
render". There are ways to achieve that for instance setting height
and/or width on an element.
And at the end of the page elements are listed to which filter can be
applied, the <select> element is not listed.