/************************************************************************************************************************
*   DETECCION DEL NAVEGADOR                                                                                                                                                        *
************************************************************************************************************************/
function Browser() {
        var b=navigator.appName;
        if (b=="Netscape") this.b="ns";
        else if (navigator.userAgent.indexOf("Opera")>0) this.b = "opera";
        else if (b=="Microsoft Internet Explorer") this.b="ie";
        if (!b) alert('Unidentified browser./nThis browser is not supported,');
        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.ie55=(this.version.indexOf('MSIE 5.5')>0);
        this.ie5=(this.ie && !this.ie4);
        this.opera=(this.b=="opera");
        this.dom=((document.createRange&&(document.createRange().createContextualFragment))?true:false);
        var ua=navigator.userAgent.toLowerCase();
        if (ua.indexOf("win")>-1) this.platform="win32";
        else if (ua.indexOf("mac")>-1) this.platform="mac";
        else this.platform="other";
}
is = new Browser();
/************************************************************************************************************************
*   FIN DETECCION DEL NAVEGADOR                                                                                                                                                        *
************************************************************************************************************************/