returns the users ip address in javascript

myIP.js

function myIP() { 
    // returns the users ip address
    // ref link: http://stackoverflow.com/questions/391979/get-client-ip-using-just-javascript
    if (window.XMLHttpRequest) xmlhttp = new XMLHttpRequest();
    else xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");

    xmlhttp.open("GET","http://api.hostip.info/get_html.php",false);
    xmlhttp.send();

    hostipInfo = xmlhttp.responseText.split("\n");

    for (i=0; hostipInfo.length >= i; i++) {
        ipAddress = hostipInfo[i].split(":");
        if ( ipAddress[0] == "IP" ) return ipAddress[1];
    }

    return false;
}

Will it return the private IP address?