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if (sidebar.currentStyle && sidebar.currentStyle['float'] == 'none') return;
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if (window.getComputedStyle && document.defaultView.getComputedStyle(sidebar,null).getPropertyValue('float') == 'none') return;
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var footer = document.getElementById('footer');
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var ul = footer.lastChild;
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while (ul.nodeType != 1) ul=ul.previousSibling;