function createCookie(name,value,days){
	if (days){var date = new Date();date.setTime(date.getTime()+(days*24*60*60*1000));var expires = "; expires="+date.toGMTString();}
	else {var expires = "";}document.cookie = name+"="+value+expires+"; path=/";
}
function readCookie(name){var nameEQ = name + "=";var ca = document.cookie.split(';');
    for(var i=0;i<ca.length;i++){var c = ca[i];	while (c.charAt(0)==' ') {c = c.substring(1,c.length);}	if (c.indexOf(nameEQ) == 0) {return c.substring(nameEQ.length,c.length);}}
	return null;
}
function eraseCookie(name) { createCookie(name, "", -1); }

function cookie(key, value, options) {

    // key and at least value given, set cookie...
    if (arguments.length > 1 && String(value) !== "[object Object]") {
        if (options == null) {
            options = {};
        }

        if (value === null || value === undefined) {
            options.expires = -1;
        }

        if (typeof options.expires === 'number') {
            var days = options.expires, t = options.expires = new Date();
            t.setDate(t.getDate() + days);
        }

        value = String(value);

        return (document.cookie = [
            encodeURIComponent(key), '=',
            options.raw ? value : encodeURIComponent(value),
            options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
            options.path ? '; path=' + options.path : '',
            options.domain ? '; domain=' + options.domain : '',
            options.secure ? '; secure' : ''
        ].join(''));
    }

    // key and possibly options given, get cookie...
    options = value || {};
    var result, decode = options.raw ? function (s) { return s; } : decodeURIComponent;
    return (result = new RegExp('(?:^|; )' + encodeURIComponent(key) + '=([^;]*)').exec(document.cookie)) ? decode(result[1]) : null;
};
			