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 "here";
        i=document.cookie.indexOf(" ",i)+1;
        if (i==0) break;
    }
    return null;
}

var visit=GetCookie("COOKIE1");
if (visit==null){
    var expire=new Date();
    expire=new Date(expire.getTime()+7776000000);
    document.cookie="COOKIE1=here; expires="+expire;
}