function getCookie(name) {
	var prefix = name + "="
	var cookieStartIndex = document.cookie.indexOf(prefix)

	if (cookieStartIndex == -1)
		return null

	var cookieEndIndex = document.cookie.indexOf(";", cookieStartIndex + prefix.length)
	if (cookieEndIndex == -1)
		cookieEndIndex = document.cookie.length

	return unescape(document.cookie.substring(cookieStartIndex + prefix.length, cookieEndIndex))
}

function setCookie(name, value, expires, path, domain, secure) {
	var curCookie = name + "=" + escape(value) +
 		((expires) ? "; expires=" + expires.toGMTString() : "") +
		((path) ? "; path=" + path : "") +
		((domain) ? "; domain=" + domain : "") +
		((secure) ? "; secure" : "")

	if (!caution || (name + "=" + escape(value)).length <= 4000)
		document.cookie = curCookie
	else if (confirm("Cookie превышает 4KB и будет вырезан !"))
		document.cookie = curCookie
}

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"
  }
}