function GetCurrentStyle (obj, prop) { if (obj.currentStyle) { return obj.currentStyle[prop]; } else if (window.getComputedStyle) { prop = prop.replace (/([A-Z])/g, "-$1"); prop = prop.toLowerCase (); return window.getComputedStyle (obj, "").getPropertyValue(prop); } return null; }

代码来自于http://tvweek.com/javascripts/default.js