// Browsercheck by Thomas Brattli Copyright (C) 2001
// This script was released at DHTMLCentral.com

function lib_bwcheck(){
        this.ver=navigator.appVersion
        this.agent=navigator.userAgent
        this.dom=document.getElementById?1:0
        this.opera5=this.agent.indexOf("Opera 5")>-1
        this.ie5=(this.ver.indexOf("MSIE 5")>-1 && this.dom && !this.opera5)?1:0;
        this.ie6=(this.ver.indexOf("MSIE 6")>-1 && this.dom && !this.opera5)?1:0;
        this.ie4=(document.all && !this.dom && !this.opera5)?1:0;
        this.ie=this.ie4||this.ie5||this.ie6
        this.mac=this.agent.indexOf("Mac")>-1
        this.ns6=(this.dom && parseInt(this.ver) >= 5) ?1:0;
        this.ns4=(document.layers && !this.dom)?1:0;
        this.bw=(this.ie6 || this.ie5 || this.ie4 || this.ns4 || this.ns6 || this.opera5)
        return this
}

function centeredWindow(ziel,breite,hoehe) {

 var seite = (screen.availWidth - breite) / 2;
 var oben = (screen.availHeight - hoehe) / 2;
 params = ('width='+ breite +',height='+ hoehe +',left='+ seite +',top='+ oben+',scrollbars=no,resizable=no,locationbar=yes');

 F4 = window.open(ziel,'winwin',params);

}