// BrowserCheck Object
function BrowserCheck() {
    var b = navigator.appName
    if (b=="Netscape") this.b = "ns"
    else if (b=="Microsoft Internet Explorer") this.b = "ie"
    else this.b = b
    this.version = navigator.appVersion
    this.v = parseInt(this.version)
    this.ns = (this.b=="ns" && this.v>=4)
    this.ns4 = (this.b=="ns" && this.v==4)
    this.ns5 = (this.b=="ns" && this.v==5)
    this.ie = (this.b=="ie" && this.v>=4)
    this.ie4 = (this.version.indexOf('MSIE 4')>0)
    this.ie5 = (this.version.indexOf('MSIE 5')>0)
    this.min = (this.ns||this.ie)
}
var is = new BrowserCheck()