//.CommonJS var CSSOM = {

StyleSheet: require("./StyleSheet").StyleSheet,
CSSStyleRule: require("./CSSStyleRule").CSSStyleRule

}; ///CommonJS

/**

* @constructor
* @see http://www.w3.org/TR/DOM-Level-2-Style/css.html#CSS-CSSStyleSheet
*/

CSSOM.CSSStyleSheet = function CSSStyleSheet() {

CSSOM.StyleSheet.call(this);
this.cssRules = [];

};

CSSOM.CSSStyleSheet.prototype = new CSSOM.StyleSheet(); CSSOM.CSSStyleSheet.prototype.constructor = CSSOM.CSSStyleSheet;

/**

* Used to insert a new rule into the style sheet. The new rule now becomes part of the cascade.
*
*   sheet = new Sheet("body {margin: 0}")
*   sheet.toString()
*   -> "body{margin:0;}"
*   sheet.insertRule("img {border: none}", 0)
*   -> 0
*   sheet.toString()
*   -> "img{border:none;}body{margin:0;}"
*
* @param {string} rule
* @param {number} index
* @see http://www.w3.org/TR/DOM-Level-2-Style/css.html#CSS-CSSStyleSheet-insertRule
* @return {number} The index within the style sheet's rule collection of the newly inserted rule.
*/

CSSOM.CSSStyleSheet.prototype.insertRule = function(rule, index) {

if (index < 0 || index > this.cssRules.length) {
        throw new RangeError("INDEX_SIZE_ERR");
}
var cssRule = CSSOM.parse(rule).cssRules[0];
cssRule.parentStyleSheet = this;
this.cssRules.splice(index, 0, cssRule);
return index;

};

/**

* Used to delete a rule from the style sheet.
*
*   sheet = new Sheet("img{border:none} body{margin:0}")
*   sheet.toString()
*   -> "img{border:none;}body{margin:0;}"
*   sheet.deleteRule(0)
*   sheet.toString()
*   -> "body{margin:0;}"
*
* @param {number} index within the style sheet's rule list of the rule to remove.
* @see http://www.w3.org/TR/DOM-Level-2-Style/css.html#CSS-CSSStyleSheet-deleteRule
*/

CSSOM.CSSStyleSheet.prototype.deleteRule = function(index) {

if (index < 0 || index >= this.cssRules.length) {
        throw new RangeError("INDEX_SIZE_ERR");
}
this.cssRules.splice(index, 1);

};

/**

* NON-STANDARD
* @return {string} serialize stylesheet
*/

CSSOM.CSSStyleSheet.prototype.toString = function() {

var result = "";
var rules = this.cssRules;
for (var i=0; i<rules.length; i++) {
        result += rules[i].cssText + "\n";
}
return result;

};

//.CommonJS exports.CSSStyleSheet = CSSOM.CSSStyleSheet; CSSOM.parse = require('./parse').parse; // Cannot be included sooner due to the mutual dependency between parse.js and CSSStyleSheet.js ///CommonJS