function getCookie(name) {
        var matches = document.cookie.match(new RegExp(
          "(?:^|; )" + name.replace(/([\.$?*|{}\(\)\[\]\\\/\+^])/g, '\\$1') + "=([^;]*)"
        ))
        return matches ? decodeURIComponent(matches[1]) : undefined 
    }
     
    // уcтанавливает cookie
    function setCookie(name, value, props) {
        props = props || {}
        var exp = props.expires
        if (typeof exp == "number" && exp) {
            var d = new Date()
            d.setTime(d.getTime() + exp*1000)
            exp = props.expires = d
        }
        if(exp && exp.toUTCString) { props.expires = exp.toUTCString() }
     
        value = encodeURIComponent(value)
        var updatedCookie = name + "=" + value
        for(var propName in props){
            updatedCookie += "; " + propName
            var propValue = props[propName]
            if(propValue !== true){ updatedCookie += "=" + propValue }
        }
        document.cookie = updatedCookie
     
    }
     
    // удаляет cookie
    function deleteCookie(name) {
        setCookie(name, null, { expires: -1 })
    }
    
    function firstPopupCookie(){
        var welcome = getCookie('welcome');
        if(!welcome){
            PopupShow('popup_welcome');
            setCookie("welcome", true, { expires: 30} );
        }
    }