As a quick fix for this problem, you can make a plugin (I think this would classify as a plugin) just add the following after you include jquery
jQuery.extend({ curCSS: function(elem, prop, force) { var ret, stack = [], swap = []; // A helper method for determining if an element's values are broken function color(a){ if ( !jQuery.browser.safari ) return false; var ret = document.defaultView.getComputedStyle(a,null); return !ret || ret.getPropertyValue("color") == ""; } if (prop == "opacity" && jQuery.browser.msie) { ret = jQuery.attr(elem.style, "opacity"); return ret == "" ? "1" : ret; } if (prop.match(/float/i)) prop = styleFloat; if (!force && elem.style[prop]) ret = elem.style[prop]; else if (document.defaultView && document.defaultView.getComputedStyle) { if (prop.match(/float/i)) prop = "float"; prop = prop.replace(/([A-Z])/g,"-$1").toLowerCase(); var cur = document.defaultView.getComputedStyle(elem, null); if ( cur && !color(elem) ) ret = cur.getPropertyValue(prop); // If the element isn't reporting its values properly in Safari // then some display: none elements are involved else { // Locate all of the parent display: none elements for ( var a = elem; a && color(a); a = a.parentNode ) stack.unshift(a); // Go through and make them visible, but in reverse // (It would be better if we knew the exact display type that they had) for ( a = 0; a < stack.length; a++ ) if ( color(stack[a]) ) { swap[a] = stack[a].style.display; stack[a].style.display = "block"; } // Since we flip the display style, we have to handle that // one special, otherwise get the value //bug fix - http://dev.jquery.com/ticket/1661 // ret = prop == "display" && swap[stack.length-1] != null ? // "none" : // document.defaultView.getComputedStyle(elem,null).getPropertyValue(prop) || ""; ret = (prop == "display" && swap[stack.length-1] != null) ? "none" : (document.defaultView.getComputedStyle(elem,null) != null) ? document.defaultView.getComputedStyle(elem,null).getPropertyValue(prop) : ""; // Finally, revert the display styles back for ( a = 0; a < swap.length; a++ ) if ( swap[a] != null ) stack[a].style.display = swap[a]; } if ( prop == "opacity" && ret == "" ) ret = "1"; } else if (elem.currentStyle) { var newProp = prop.replace(/\-(\w)/g,function(m,c){return c.toUpperCase();}); ret = elem.currentStyle[prop] || elem.currentStyle[newProp]; // From the awesome hack by Dean Edwards // http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291 // If we're not dealing with a regular pixel number // but a number that has a weird ending, we need to convert it to pixels if ( !/^\d+(px)?$/i.test(ret) && /^\d/.test(ret) ) { var style = elem.style.left; var runtimeStyle = elem.runtimeStyle.left; elem.runtimeStyle.left = elem.currentStyle.left; elem.style.left = ret || 0; ret = elem.style.pixelLeft + "px"; elem.style.left = style; elem.runtimeStyle.left = runtimeStyle; } } return ret; } });