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/* http://textsnippets.com/posts/show/835 */
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Position.GetWindowSize = function(w) {
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w = w ? w : window;
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var width = w.innerWidth || (w.document.documentElement.clientWidth || w.document.body.clientWidth);
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var height = w.innerHeight || (w.document.documentElement.clientHeight || w.document.body.clientHeight);
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return [width, height];
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};
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/* http://textsnippets.com/posts/show/836 */
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Position.Center = function(element, parent) {
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var w, h, pw, ph;
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var d = Element.getDimensions(element);
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w = d.width;
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h = d.height;
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Position.prepare();
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if (!parent) {
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var ws = Position.GetWindowSize();
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pw = ws[0];
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ph = ws[1];
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} else {
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pw = parent.offsetWidth;
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ph = parent.offsetHeight;
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}
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element.style.top = (ph/2) - (h/2) - Position.deltaY + "px";
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element.style.left = (pw/2) - (w/2) - Position.deltaX + "px";
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};
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