梦幻手游8级宝石:谁可以帮帮我解释一下以下的JavaScript的代码:

var debug = false;
var newwindow = false;
var myBase = new jsBasic();
myBase.setLog(debug, newwindow); var current_row = 2;
var current_col = 8;
var sid=";
jsessionid=0000JULhBiVyTLgqnsOll2PdDQ1:10ktmf25f";
var homeNavs="";
function encodeUrl(url, secure)
{ var splitPos = url.indexOf("?"); if (splitPos > 0)
{ var startUrl = url.substring(0, splitPos);
var endUrl=url.substring(splitPos, url.length);
url = startUrl + sid + endUrl; }
else url = url + sid;
var checkIfRelative = url.indexOf("://");
if (checkIfRelative == -1)
{ if (secure) url = "https://secure.royalcaribbean.com" + url; else url = "http://www.royalcaribbean.com" + url;
}
return url ; }
function doLink(url)
{document.location = encodeUrl(url, false);}
function getSecureLink(url) {return encodeUrl(url, true) ;} function doSecureLink(url) {document.location = encodeUrl(url, true);}
function doLinkPopup(url, height, width, hasScroll, secure) {var encodedUrl = encodeUrl(url, secure) ;
myBase.popup(encodedUrl, height, width, hasScroll) ;}
var popMsg = "confirm" ;