javascript - How to get opacity value as an int for alpha filter? -

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for internet explorer opacity set in inline css this:

style="filter: alpha(opacity=50);"

what i'd opacity value in integer in javascript. ok guess can whole string , parse out int, there faster/better way?

thanks

the javascript pretty simple:

var opacity = this.filters.alpha.opacity;

or if have id...

var opacity = getelementbyid('myelement').filters.alpha.opacity;

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