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TODO intro The code/**
* Sets the background of an element to a transparent image in a browser-
* independent manner.
*
* This function does not support repeating backgrounds or alternate background
* positions to match the behavior of Internet Explorer. It also does not
* support sizingMethods other than crop since they cannot be replicated in
* browsers other than Internet Explorer.
*
* @param {Element} el
* @param {String} src The image source URL
*/
goog.style.setTransparentBackgroundImage = function(el, src) {
var style = el.style;
if ('filter' in style) {
style.filter = 'progid:DXImageTransform.Microsoft.AlphaImageLoader(' +
'src="' + src + '", sizingMethod="crop")';
} else {
// Set style properties individually instead of using background shorthand
// to prevent overwriting a pre-existing background color.
style.backgroundImage = 'url(' + src + ')';
style.backgroundPosition = 'top left';
style.backgroundRepeat = 'no-repeat';
}
};The code walkthroughTODO walkthrough Further readingTODO further reading
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También se puede utilizar un fichero HTC externo para cargar el script. Más info: http://www.exelweiss.com/blog/259/solucion-png-transparencia-ie-internet-explorer-6/
Can I use PNG images？
Yes! This method created for png images displaying in IE. All gecko based browsers shows png alfa correctly.