function AddStyleSheet(url,idx){
	var css,before=null,head=document.getElementsByTagName("head")[0];

		if (document.createElement){
				if (url){
							css = document.createElement('link');
										css.rel  = 'stylesheet';
													css.href = url;
															} else css = document.createElement('style');
																	css.media = 'all';
																			css.type  = 'text/css';

																					if (idx>=0){
																								for (var i=0,ct=0,len=head.childNodes.length;i<len;i++){
																												var el = head.childNodes[i];
																																if (!el.tagName) continue;
																																				var tagName = el.tagName.toLowerCase();
																																								if (ct==idx){
																																													before = el;
																																																		break;
																																																						}
																																																										if (tagName=='style' || tagName=='link' && (el.rel && el.rel.toLowerCase()=='stylesheet' || el.type && el.type.toLowerCase()=='text/css') ) ct++;
																																																													}
																																																															}
																																																																	head.insertBefore(css,before);

																																																																			return document.styleSheets[before?idx:document.styleSheets.length-1];
																																																																				} else return alert("I can't create a new stylesheet for you. Sorry.");
																																																																				}
																																																																				// e.g. var newBlankSheetAfterAllOthers = AddStyleSheet(); 
																																																																				// e.g. var newBlankSheetBeforeAllOthers = AddStyleSheet(null,0);
																																																																				// e.g. var externalSheetAfterOthers = AddStyleSheet('http://phrogz.net/JS/Classes/docs.css');
																																																																				// e.g. var externalSheetBeforeOthers = AddStyleSheet('http://phrogz.net/JS/Classes/docs.css',0);


																																																																				// Cross-browser method for inserting a new rule into an existing stylesheet.
																																																																				// ss       - The stylesheet to stick the new rule in
																																																																				// selector - The string value to use for the rule selector
																																																																				// styles   - The string styles to use with the rule
																																																																				function AddRule(ss,selector,styles){
																																																																					if (!ss) return false;
																																																																						if (ss.insertRule) return ss.insertRule(selector+' {'+styles+'}',ss.cssRules.length);
																																																																							if (ss.addRule){
																																																																									ss.addRule(selector,styles);
																																																																											return true;
																																																																												}
																																																																													return false;
																																																																													}