function isCookieAvarable(){
	var res = false;
	if(typeof document.cookie == "string"){
		if(document.cookie.length <= 0){
			document.cookie = "check";
			res = (document.cookie == "check");
			document.cookie = "";
		}else{
			res = true;
		}
	}
	return res;
}
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 (document.cookie.substring(i, j) == arg) {
		return getCookieVal(j);
	}
	i = document.cookie.indexOf(" ", i) + 1;
	if (i == 0) break; 
	}
	return null;
}
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";
	}
}