DOM = (document.getElementById) ? 1 : 0;
NS4 = (document.layers) ? 1 : 0;
Konqueror = (navigator.userAgent.indexOf("Konqueror") > -1) ? 1 : 0;
Konqueror21 = ((navigator.userAgent.indexOf("Konqueror 2.1") > -1 || navigator.userAgent.indexOf("Konqueror/2.1") > -1)) ? 1 : 0;
Konqueror22 = ((navigator.userAgent.indexOf("Konqueror 2.2") > -1 || navigator.userAgent.indexOf("Konqueror/2.2") > -1)) ? 1 : 0;
Konqueror2 = Konqueror21 || Konqueror22;
Opera = (navigator.userAgent.indexOf("Opera") > -1) ? 1 : 0;
Opera5 = (navigator.userAgent.indexOf("Opera 5") > -1 || navigator.userAgent.indexOf("Opera/5") > -1) ? 1 : 0;
Opera6 = (navigator.userAgent.indexOf("Opera 6") > -1 || navigator.userAgent.indexOf("Opera/6") > -1) ? 1 : 0;
Opera56 = Opera5 || Opera6;
IE = (document.all) ? 1 : 0;
IE4 = IE && !DOM;