JEditorPane: URLs in external CSS should be evaluated relative to the CSS

 If I add this style to an external style sheet:
 
 ul {margin-top: 5;
     margin-bottom: 5;
     margin-left: 14;
     list-style-image: ../images/bullet1.gif}
 
 I would expect the URL (../images/bullet1.gif) to be evaluated
 relative to the path of the style sheet. In JDK 1.3, the path is
 evaluated relative to the HTML file in which the <ul> list appears.
 This means that the image isn't found in some HTML files
 located at hierarchically different levels from the image.