(Javascript) What is the equivilent to ASP's inStr in javascript?

I know I have asked this before but I cannot find the post or where I used it in my code so....

What is the equivilent to ASP's inStr in javascript?

thanks
Michael

Code:

---

function InstrThing(str,substr,start){
    var oStr = new String(str);
    return oStr.indexOf(substr,start);
}

---

indexOf returns position of substring in string or -1 if not found

Thanks. :)
I am trying to make a javascript redirect depening on IE version. I want it to go one way if 5.5+ and another way if 5.0- Here is what I have so far:

Code:

---

document.write(navigator.appVersion + '<br><br>');
var intStart = (navigator.appVersion.indexOf('MSIE',1) + 5);
var intVers = navigator.appVersion.substring(parseInt(intStart), 3);
document.write(intStart + '<br>');
document.write(intVers);

---

and the output:

Quote:

---

4.0 (compatible; MSIE 5.5; Windows NT 4.0; T312461)

22
(compatible; MSIE

---

so it is starting at the fourth position and giving me the next 22 chars... i want it to start at the 22position and give me the next 3 chars... so I flip it and it does the same...
and ideas?
Michael

ahh if it's browser version you want
have a look at this

The problem with that script (besides being too dang long :) ) is that is only detects ie4+ or ie3- i need ie5.5+ ie ie5.0-
Michael

k here is what i did

Code:

---

var browserName = navigator.appName;
        if (browserName == "Microsoft Internet Explorer"){
                if (navigator.appVersion.indexOf('MSIE 5.5',1)!=-1 || navigator.appVersion.indexOf('MSIE 6.0',1)!=-1){
                        alert('ok go to net');
                }else{
                        alert('get a new browser');
                }
        }

---

I know that is bad cos it only covers IE and will fail on the next vers of IE but this is only temporary :)

thanks
Michael

Code:

---

var nVer = navigator.appVersion;
var nAgt = navigator.userAgent;

var fullVersion = parseFloat(nVer);
var majorVersion = parseInt(nVer);

// In Internet Explorer, the true version is after "MSIE"

if ((verOffset=nAgt.indexOf("MSIE"))!=-1) {
 fullVersion = parseFloat(nAgt.substring(verOffset+5,nAgt.length));
 majorVersion = parseInt(''+fullVersion);
}

// In Opera, the true version is after "Opera"

if ((verOffset=nAgt.indexOf("Opera"))!=-1) {
 fullVersion = parseFloat(nAgt.substring(verOffset+6,nAgt.length));
 majorVersion = parseInt(''+fullVersion);
}

document.write('Full version = '+fullVersion+'<br>');
document.write('Major version = '+majorVersion);

---

ok that link was me being lazy this will give you the version number.