var AgntUsr = navigator.userAgent.toLowerCase();
var DomYes  = document.getElementById ? 1 : 0;
var NavYes  = AgntUsr.indexOf('mozilla') != -1 && AgntUsr.indexOf('compatible') == -1 ? 1 : 0;
var ExpYes  = AgntUsr.indexOf('msie') != -1 ? 1 : 0;
var OprYes  = AgntUsr.indexOf('opera') != -1 ? 1 : 0;
var Opr6OrLess = window.opera && navigator.userAgent.search(/opera.[1-6]/i) != -1; 
var DomNav  = DomYes && NavYes ? 1 : 0;
var DomExp  = DomYes && ExpYes ? 1 : 0;
var Nav4    = NavYes && !DomYes && document.layers ? 1 : 0;
var Exp4    = ExpYes && !DomYes && document.all ? 1 : 0;
var Exp7    = (ExpYes && window.XMLHttpRequest);
var Linux   = AgntUsr.indexOf('linux') != -1 || AgntUsr.indexOf('x11') != -1 ? 1 : 0;

function check4Frameset(frameset) {
    if (!NavYes && !ExpYes && !OprYes) {
        return false;
    }

    try {
        if (top.location.href == location.href){
            top.location.replace(frameset.replace(".htm",".php")+"?page="+location.href.replace("http://"+location.hostname, ""));
        }
    } catch (err) { }
}