public void startDocument(InputSource source) throws CSSException {
if (_nodeStack.empty()) {
CSSStyleSheetImpl ss = new CSSStyleSheetImpl();
_parentStyleSheet = ss;
// Create the rule list
CSSRuleListImpl rules = new CSSRuleListImpl();
ss.setRuleList(rules);
_nodeStack.push(ss);
_nodeStack.push(rules);
} else {
// Error
}
}
