var csshoverReg = /(^|\s)(([^a]([^ ]+)?)|(a([^#.][^ ]+)+)):(hover|active)/i,
currentSheet, doc = window.document, hoverEvents = [], activators = {
	onhover:{on:'onmouseover', off:'onmouseout'},
	onactive:{on:'onmousedown', off:'onmouseup'}
}

function parseStylesheet(sheet) {
	if(sheet.imports) {
		try {
			var imports = sheet.imports, l = imports.length;
			for(var i=0; i<l; i++) parseStylesheet(sheet.imports[i]);
		} catch(securityException){}
	}

	try {
		var rules = (currentSheet = sheet).rules, l = rules.length;
		for(var j=0; j<l; j++) parseCSSRule(rules[j]);
	} catch(securityException){}
}

function parseCSSRule(rule) {
	var select = rule.selectorText, style = rule.style.cssText;
	if(!csshoverReg.test(select) || !style) return;

	var pseudo = select.replace(/[^:]+:([a-z-]+).*/i, 'on$1');
	var newSelect = select.replace(/(\.([a-z0-9_-]+):[a-z]+)|(:[a-z]+)/gi, '.$2' + pseudo);
	var className = (/\.([a-z0-9_-]*on(hover|active))/i).exec(newSelect)[1];
	var affected = select.replace(/:(hover|active).*$/, '');
	var elements = getElementsBySelect(affected);
	if(elements.length == 0) return;

	currentSheet.addRule(newSelect, style);
	for(var i=0; i<elements.length; i++)
		new HoverElement(elements[i], className, activators[pseudo]);
}

function HoverElement(node, className, events) {
	if(!node.hovers) node.hovers = {};
	if(node.hovers[className]) return;
	node.hovers[className] = true;
	hookHoverEvent(node, events.on, function() { node.className += ' ' + className; });
	hookHoverEvent(node, events.off, function() { node.className = node.className.replace(new RegExp('\\s+'+className, 'g'),''); });
}
	function hookHoverEvent(node, type, handler) {
		node.attachEvent(type, handler);
		hoverEvents[hoverEvents.length] = { 
			node:node, type:type, handler:handler 
		};
	}

	function unhookHoverEvents() {
		for(var e,i=0; i<hoverEvents.length; i++) {
			e = hoverEvents[i]; 
			e.node.detachEvent(e.type, e.handler);
		}
	}

function getElementsBySelect(rule) {
	var parts, nodes = [doc];
	parts = rule.split(' ');
	for(var i=0; i<parts.length; i++) {
		nodes = getSelectedNodes(parts[i], nodes);
	}	return nodes;
}

function getSelectedNodes(select, elements) {
	var result, node, nodes = [];
	var identify = (/\#([a-z0-9_-]+)/i).exec(select);
	if(identify) {
		var element = doc.getElementById(identify[1]);
		return element? [element]:nodes;
	}
		
	var classname = (/\.([a-z0-9_-]+)/i).exec(select);
	var tagName = select.replace(/(\.|\#|\:)[a-z0-9_-]+/i, '');
	var classReg = classname? new RegExp('\\b' + classname[1] + '\\b'):false;
	for(var i=0; i<elements.length; i++) {
		result = tagName? elements[i].all.tags(tagName):elements[i].all; 
		for(var j=0; j<result.length; j++) {
			node = result[j];
			if(classReg && !classReg.test(node.className)) continue;
			nodes[nodes.length] = node;
		}
	}	
		
	return nodes;
}

function ActivateHoverBlockActionInIE() {
	/* применение стиля block:hover через DHTML для IE */
	if(!/MSIE (5|6)/.test(navigator.userAgent)) return;
	window.attachEvent('onunload', unhookHoverEvents);
	var sheets = doc.styleSheets, l = sheets.length;
	for(var i=0; i<l; i++) 
		parseStylesheet(sheets[i]);
}

/*
    Скрипт вывода e-mail
*/
var mail_link;

icomail_name = 'info';
icomail_domain = '@gkrosinka.ru';
icomail_link_s = '<a href="mailto:' + icomail_name + icomail_domain + '">';
icomail_link_e = '</a>';
mail_link = icomail_link_s + icomail_name + icomail_domain + icomail_link_e;

/*
    Обработка внешних ссылок
*/
function updateLinks() {
   /* обработка ссылок с параметром rel="ext:имя_окна" */
   /* для обеспечения xhtml совместимости */

	if (document.getElementsByTagName) {
		links_list = document.getElementsByTagName('a');
		for(i=0; i<links_list.length; i++) {
			if (0 == links_list[i].rel.indexOf('ext:')) {
				links_list[i].target = links_list[i].rel.substring(4, links_list[i].rel.length);
			}
		}
	}
}

function openLink(wlink, wd, hd) {
	/* открытие нового окна с заданными размерами в центре экрана */
	var pref = "geniks";
	re = new RegExp("[^a-z0-9_]","g");

	namewindow = wlink.replace(re,'');
	window.open(wlink, pref + namewindow, "height=" + hd + ",width=" + wd + ",xposition=" + ((screen.width / 2) - (wd / 2)) + ",yposition=" + ((screen.height / 2) - (hd / 2)) + ",top=" + ((screen.height / 2) - (hd / 2)) + ",left=" + ((screen.width / 2) - (wd / 2)) + ",toolbar=0,location=0,status=0,menubar=0,scrollbars=0,resizable=0");
}

/*
    Функции работы с Cookies
*/
function getExpDate(days, hours, minutes) {
    var expDate = new Date();
    if (typeof days == "number"
         &&
         typeof hours == "number"
         && 
         typeof hours == "number") {
        expDate.setDate(expDate.getDate() + parseInt(days));
        expDate.setHours(expDate.getHours() + parseInt(hours));
        expDate.setMinutes(expDate.getMinutes() + parseInt(minutes));
        return expDate.toGMTString();
    }
}
   
function getCookieVal(offset) {
    var endstr = document.cookie.indexOf (";", offset);
    if (endstr == -1) {
        endstr = document.cookie.length;
    }
    return unescape(document.cookie.substring(offset, endstr));
}
   
function getCookie(name) {
    var arg = name + "=";
    var alen = arg.length;
    var clen = document.cookie.length;
    var i = 0;
    while (i < clen) {
        var j = i + alen;
        if (arg == document.cookie.substring(i, j)) {
            return getCookieVal(j);
        }
        i = document.cookie.indexOf(" ", i) + 1;
        if (i == 0) break; 
    }
    return "";
}
   
function setCookie(name, value, expires, path, domain, secure) {
    document.cookie = name + "=" + escape (value) +
        ((expires) ? "; expires=" + expires : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");
}
   
function deleteCookie(name,path,domain) {
    if (getCookie(name)) {
        document.cookie = name + "=" +
            ((path) ? "; path=" + path : "") +
            ((domain) ? "; domain=" + domain : "") +
            "; expires=Thu, 01-Jan-70 00:00:01 GMT";
    }
}