var cookies=document.cookie;
function readCookie(name,ret){
        cookies=document.cookie;
        var start=cookies.indexOf(name+'=');
        if(start==- 1 ){
                return ret;
        }
        start=cookies.indexOf('=',start)+ 1 ;
        var end=cookies.indexOf(';',start);
        if(end==- 1 )end=cookies.length;
        var value=unescape(cookies.substring(start,end));
        if(value==null){
                return ret;
        }
        return value;
}
function setCookie(name, value, expires, path, domain,secure){
        if(!expires)expires=setTowWeek();
        var curCookie = name + "=" + escape(value) +
        ((expires) ? "; expires=" +
        expires.toGMTString() : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" +
        domain : "") +
        ((secure) ? "; secure" : "");
        if ((name + "=" + escape(value)).length <=  4000 ){
             document.cookie = curCookie;
        }else
            if (confirm("Cookie превышает 4KB и будет вырезан !"))
                document.cookie = curCookie;
}
 function setTowWeek() {
        var date=new Date()
        date=date.getTime();
        date+= 1209600000 ;//на неделю 
        date=new Date(date);
        return date;
}

function load_css_link ( link, reload ) {
        if ( reload ) {
                var tmpTime = new Date();
                link += '?'+tmpTime.getTime();//Что бы не кешировались
        }
        var script_link = document.createElement('link');
        script_link.rel="stylesheet";
        script_link.type="text/css";
        script_link.href=link;
        document.body.appendChild(script_link);
}