code: function getComputedDisplay(el, win) {
          var display = getComputedStyleProperty(el, "display", win);
          var tagName = el.tagName.toLowerCase();
          return (display == "block" &&
                  tableCssDisplayBlock &&
                  defaultDisplayValueForTag.hasOwnProperty(tagName)) ?
              defaultDisplayValueForTag[tagName] : display;
      }
docs: Corrects IE's "block" value for table-related elements