// The constructor function: creates a cookie object for the specified
// document, with a specified name and optional attributes.
// Arguments:
//   document: The Document object that the cookie is stored for. Required.
//   name:     A string that specifies a name for the cookie. Required.
//   minutes:  An optional number that specifies the number of minutes from now
//             that the cookie should expire.
//   path:     An optional string that specifies the cookie path attribute.
//   domain:   An optional string that specifies the cookie domain attribute.
//   secure:   An optional Boolean value that, if true, requests a secure cookie
function Cookie (document, name, minutes, path, domain, secure) {
    this.$document = document;
    this.$name = name;
    if (minutes)
        this.$expiration = new Date((new Date()).getTime() + minutes*60000);
    else this.$expiration = null;
    if (path) this.$path = path; else this.$path = null;
    if (domain) this.$domain = domain; else this.$domain = null;
    if (secure) this.$secure = true; else this.$secure = false;
}

function _Cookie_store() {
    var cookieval = "";
    for(var prop in this) {
        if ((prop.charAt(0) == '$') || ((typeof this[prop]) == 'function')) 
            continue;
        if (cookieval != "") cookieval += '&';
        cookieval += prop + ':' + escape(this[prop]);
    }
    var cookie = this.$name + '=' + cookieval;
    if (this.$expiration)
        cookie += '; expires=' + this.$expiration.toGMTString();
    if (this.$path) cookie += '; path=' + this.$path;
    if (this.$domain) cookie += '; domain=' + this.$domain;
    if (this.$secure) cookie += '; secure';
    this.$document.cookie = cookie;
}

function _Cookie_load() {
    var allcookies = this.$document.cookie;
    if (allcookies == "") return false;
    var start = allcookies.indexOf(this.$name + '=');
    if (start == -1) return false;
    start += this.$name.length + 1;
    var end = allcookies.indexOf(';', start);
    if (end == -1) end = allcookies.length;
    var cookieval = allcookies.substring(start, end);
    var a = cookieval.split('&');
    for(var i=0; i < a.length; i++)
        a[i] = a[i].split(':');
    for(var i = 0; i < a.length; i++) {
        this[a[i][0]] = unescape(a[i][1]);
    }
    return true;
}

function _Cookie_remove() {
    var cookie;
    cookie = this.$name + '=';
    if (this.$path) cookie += '; path=' + this.$path;
    if (this.$domain) cookie += '; domain=' + this.$domain;
    cookie += '; expires=Fri, 02-Jan-1970 00:00:00 GMT';
    this.$document.cookie = cookie;
}

// assign functions to the Cookie object
Cookie.prototype.store  = _Cookie_store;
Cookie.prototype.load   = _Cookie_load;
Cookie.prototype.remove = _Cookie_remove;

// extract and return a 10 digit ssa code from the url, return null if not found
function ssa () {
    var winLoc = new String(window.location);
    var ssaStart = winLoc.search(/[0-9]{10}/);
    if (ssaStart != -1) {
        return winLoc.slice (ssaStart, ssaStart+10);
    } else {
        return null; 
    }

/*function ssa()
{   // extract and return a 10 digit ssa code from the url, return null if not present

    var winLoc = new String(window.location);
    var ssaCode = null;

    if(winLoc.split ("?")[1]){
        var str2 = winLoc.split ("?")[1];
        var start = str2.indexOf("SSACode=");
        if (start!= -1){
            var str3 = str2.substring(start+8);
            var ampArray = str3.split("&");
            var eqArray = str3.split("=");
            if (ampArray.length > 1){
                ssaCode = ampArray[0];
                if (ssaCode.split("=")[0]){
                    ssaCode = ssaCode.split("=")[0];
                }
            } else {
                if (eqArray.length > 1){
                    ssaCode = eqArray[0];
                } else {
                    ssaCode = str3;
                }
            }
            if (ssaCode.length != 10)
                ssaCode = null;         
        }       
    }
    return ssaCode;
    
}*/

}