//.CommonJS var CSSOM = {

CSSStyleSheet: require("./CSSStyleSheet").CSSStyleSheet,
CSSStyleRule: require("./CSSStyleRule").CSSStyleRule,
CSSMediaRule: require("./CSSMediaRule").CSSMediaRule,
CSSSupportsRule: require("./CSSSupportsRule").CSSSupportsRule,
CSSStyleDeclaration: require("./CSSStyleDeclaration").CSSStyleDeclaration,
CSSKeyframeRule: require('./CSSKeyframeRule').CSSKeyframeRule,
CSSKeyframesRule: require('./CSSKeyframesRule').CSSKeyframesRule

}; ///CommonJS

/**

* Produces a deep copy of stylesheet — the instance variables of stylesheet are copied recursively.
* @param {CSSStyleSheet|CSSOM.CSSStyleSheet} stylesheet
* @nosideeffects
* @return {CSSOM.CSSStyleSheet}
*/

CSSOM.clone = function clone(stylesheet) {

var cloned = new CSSOM.CSSStyleSheet();

var rules = stylesheet.cssRules;
if (!rules) {
        return cloned;
}

var RULE_TYPES = {
        1: CSSOM.CSSStyleRule,
        4: CSSOM.CSSMediaRule,
        //3: CSSOM.CSSImportRule,
        //5: CSSOM.CSSFontFaceRule,
        //6: CSSOM.CSSPageRule,
        8: CSSOM.CSSKeyframesRule,
        9: CSSOM.CSSKeyframeRule,
        12: CSSOM.CSSSupportsRule
};

for (var i=0, rulesLength=rules.length; i < rulesLength; i++) {
        var rule = rules[i];
        var ruleClone = cloned.cssRules[i] = new RULE_TYPES[rule.type]();

        var style = rule.style;
        if (style) {
                var styleClone = ruleClone.style = new CSSOM.CSSStyleDeclaration();
                for (var j=0, styleLength=style.length; j < styleLength; j++) {
                        var name = styleClone[j] = style[j];
                        styleClone[name] = style[name];
                        styleClone._importants[name] = style.getPropertyPriority(name);
                }
                styleClone.length = style.length;
        }

        if (rule.hasOwnProperty('keyText')) {
                ruleClone.keyText = rule.keyText;
        }

        if (rule.hasOwnProperty('selectorText')) {
                ruleClone.selectorText = rule.selectorText;
        }

        if (rule.hasOwnProperty('mediaText')) {
                ruleClone.mediaText = rule.mediaText;
        }

        if (rule.hasOwnProperty('conditionText')) {
                ruleClone.conditionText = rule.conditionText;
        }

        if (rule.hasOwnProperty('cssRules')) {
                ruleClone.cssRules = clone(rule).cssRules;
        }
}

return cloned;

};

//.CommonJS exports.clone = CSSOM.clone; ///CommonJS