return node.ownerDocument.defaultView.getComputedStyle(node, null).getPropertyValue(propertyName); 
return node.ownerDocument.defaultView.getComputedStyle(node, null).getPropertyValue(propertyName); 
Utils.getStyleProperty = function(node, propertyName) {	return node.ownerDocument.defaultView.getComputedStyle(node, null).getPropertyValue(propertyName);};
4983	/local1/tlutelli/issta_data/temp/all_js/javascript/2007_temp/2007/4983/3d58fefd2379fe19ae5bc4540e46171c91481d00/utils.js/buggy/firefox/src/extension/components/utils.js