function browseIt()
{
    this.ver = navigator.appVersion.toLowerCase();
    this.verNum = parseInt(this.ver);
    this.agent = navigator.userAgent.toLowerCase();
    this.dom = (document.getElementById ? 1 : 0);
    this.opera = (this.agent.indexOf("opera") > -1 && this.dom ? 1 : 0);
    this.opera7 = (this.opera && this.verNum >= 7);
    this.opera9 = (this.opera && this.verNum >= 9);
    this.ie = (this.ver.indexOf("msie") > -1 && this.dom && !this.opera ? 1 : 0);
    this.ieVer = 0;
    if (this.ie) {
        var pos = this.ver.indexOf("msie");
        if (pos != -1)
            this.ieVer = parseFloat(this.ver.substr(pos + 5));
    }
    this.ie6 = (this.ie && (this.ieVer >= 6));
    this.ie6only = (this.ie && (this.ieVer >= 6) && (this.ieVer < 7));
    this.ie7 = (this.ie && (this.ieVer >= 7));
    this.macOS = (this.agent.indexOf("mac") > -1);
    this.mac = (this.macOS && this.verNum >= 7 ? 1 : 0);
    this.moz = (this.agent.indexOf("gecko") > -1);
    this.ns6 = (this.dom && this.agent.indexOf("netscape") > -1 && this.verNum >= 5 ? 1 : 0);
    this.ff = (this.agent.indexOf("firefox") > -1);
    this.b = (this.ie || this.ns6 || this.opera7 || this.mac || this.moz || this.dom);

    return this;
}

//var px = window.opera ? "" : "px";
var b = new browseIt();