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ArticleOpacity
HOWTO set an element's opacity (goog.style.setOpacity)
TODO intro
The code
/**
* Sets the opacity of a node (x-browser)
* @param {Element} el Elements
* @param {Number} alpha Opacity between 0 and 1
*/
goog.style.setOpacity = function(el, alpha) {
var style = el.style;
if ('opacity' in style) {
style.opacity = alpha;
} else if ('MozOpacity' in style) {
style.MozOpacity = alpha;
} else if ('KhtmlOpacity' in style) {
style.KhtmlOpacity = alpha;
} else if ('filter' in style) {
style.filter = 'alpha(opacity=' + (alpha * 100) + ')';
}
};The code walkthrough
TODO walkthrough
Further reading
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good