js/cookie.js


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function getcookievalue(vname){
    var cookiearr = document.cookie.split(";");
    var rval = "";
    var i;
    for(i=0;i<cookiearr.length;i++){
        if((cookiearr[i].substr(0, cookiearr[i].indexOf("="))).replace(" ", "") == vname){
            rval = unescape(cookiearr[i].substr(cookiearr[i].indexOf("=") + 1));
        }
    }
    return rval;
}

function setcookievalue(vname, val){
    document.cookie = vname + "=" + escape(val);
}

function cookie_exists(vname){
    var cookiearr = document.cookie.split(";");
    var yes = 0;
    var i;
    for(i=0;i<cookiearr.length;i++){
        if((cookiearr[i].substr(0, cookiearr[i].indexOf("="))).replace(" ", "") == vname){
            yes = 1;
            break;
        }
    }
    return yes;
}