' or ' - '
var sSeperator = ' >> ';
// Some literals - translate this into your required idiom.
var sYouAreHere = "You are here";
var sHome = "Home";
// now, the code
var sFullURL = location.href;
// sanity check 1:
// AFAIK all client browsers add a trailing / automatically if
// the entered URL is a directory instead of a file (see above).
// If it is a file, there won't be a trailing /, AND we
// want to remove the trailing file name e.g. index.html
if (sFullURL.substring(sFullURL.length - 1, sFullURL.length) != "/") {
// reverse te string, then take the first indexof /
// which will give us the length we want to chop off at the end
var sTempFullURL = "";
var i = sFullURL.length;
for (; i > 0; i--) {
sTempFullURL += sFullURL.substring(i - 1, i);
}
sFullURL = sFullURL.substring(0, sFullURL.length - sTempFullURL.indexOf("/"));
}
// extract the protocol, e.g. "http://" or "https://" from the URL string
var sProtocol = sFullURL.substring(0, sFullURL.indexOf("://") + 3); // 3 for "://"
// and then remove the protocol
var sURLWithoutProtocol = sFullURL.slice(sProtocol.length ,sFullURL.length);
//alert("IN: sURLWithoutProtocol: " + sURLWithoutProtocol + "\nsFullURL: " + sFullURL);
// sanity check 2:
// to avoid future problems, remove redundant slashes
// where there are 2+ together, reduce to 1
{
// extract pieces between slashes, and build a
// completely new string
var sTemp = "";
while (sURLWithoutProtocol.length > 0) {
if (sURLWithoutProtocol.indexOf("/") > 0) {
sTemp += sURLWithoutProtocol.substring(0, sURLWithoutProtocol.indexOf("/")) + "/";
sURLWithoutProtocol = sURLWithoutProtocol.slice(sURLWithoutProtocol.substring(0, sURLWithoutProtocol.indexOf("/")).length, sURLWithoutProtocol.length);
} else {
// This clause will happen if the URL string DOES NOT end with a /
// This shouldn't happen because the landing page has
// been chopped off the URL string (e.g. index.html)
// and subsequently the URL string DOES end with a /
sTemp += sURLWithoutProtocol;
sURLWithoutProtocol = "";
//alert("This should pop up once if the URL ended with a file instead a slash");
}
//alert("1: sTemp: " + sTemp);
//alert("2: sURLWithoutProtocol: " + sURLWithoutProtocol);
if (sURLWithoutProtocol.length > 0) {
while (true) {
// if the first character is a /
if (sURLWithoutProtocol.substring(0, 1) == "/") {
// then chop it off
//var sDebugMessage = "Removing slash:\nbefore: sURLWithoutProtocol: " + sURLWithoutProtocol;
sURLWithoutProtocol = sURLWithoutProtocol.slice(1, sURLWithoutProtocol.length);
//alert(sDebugMessage + "\nafter: sURLWithoutProtocol: " + sURLWithoutProtocol);
} else {
// else go on
break;
}
}
} else {
break;
}
}
//alert("and finally sTemp : " + sTemp)
// and restore the original multi-slash-free string
sURLWithoutProtocol = sTemp;
}
// if sURLWithoutProtocol had double+ slashes, fix the original URL
// comment the line below if you don't want to fix the URL. YouAreHere will still work.
sFullURL = sProtocol + sURLWithoutProtocol;
//alert("OUT: sURLWithoutProtocol: " + sURLWithoutProtocol + "\nsFullURL: " + sFullURL);
// extract "www.example.com" from the URL string, i.e. the domain
var sDomain = sURLWithoutProtocol.substring(0, sURLWithoutProtocol.indexOf("/"));
// counter intuitively we put it all back together again
var sHomeURL = sProtocol + sDomain + "/" + sSiteRoot;
// extract the "you/are/here/" from "www.example.com/some/where/mysite/you/are/here/"
// or the "you/are/here/file.html" from "www.example.com/some/where/mysite/you/are/here/file.html",
// depending on what the client entered.
var sNaviString = '';
if (sSiteRoot.length > 0) {
sNaviString = sURLWithoutProtocol.substring(sDomain.length + 1 + sSiteRoot.length + 1 , sURLWithoutProtocol.length);
} else {
sNaviString = sURLWithoutProtocol.substring(sDomain.length + 1 , sURLWithoutProtocol.length);
}
//alert("original sNaviString: " + sNaviString);
var sOutputHTML = "";
//sOutputHTML += '' + sOutputHTML + '
'); youarehereTag.document.close(); } //document.write(sOutputHTML); // optional: implement some code to rewrite the URL if the user entered multi-slash junk... } // call the following from the body.onload function, or where-ever. // YouAreHere();