ns4 = (document.layers && navigator.appName.indexOf("Netscape") > -1) ? 1 : 0;
win = (navigator.platform.indexOf("Win32") > -1) ? 1 : 0;
mac = (navigator.appVersion.indexOf("Mac") != -1 || navigator.appVersion.indexOf("PPC") != -1) ? 1 : 0;
op = (document.all && navigator.userAgent.indexOf("Opera") > -1) ? 1 : 0;
ie = (!op && document.all && (navigator.appName.indexOf("Explorer") > -1 || navigator.appVersion.indexOf("MSIE") > -1)) ? 1 : 0; 
ns6 = (!op && document.getElementById && navigator.appName.indexOf("Netscape") > -1 && navigator.userAgent.indexOf("Netscape6") > -1) ? 1 : 0;
ns7 = (!op && document.getElementById && navigator.appName.indexOf("Netscape") > -1 && navigator.userAgent.indexOf("Netscape/7") > -1) ? 1 : 0; 
mz = (!op && document.getElementById && navigator.userAgent.indexOf("Firefox") > -1) ? 1 : 0;
sf = (!op && document.getElementById && navigator.userAgent.indexOf("Safari") > -1) ? 1 : 0;
dom = (ns6 || ns7 || op || mz || sf || window.navigator.vendor == 'KDE' || (window.ScriptEngine && ScriptEngine().indexOf('InScript') > -1) && document.getElementById) ? 1 : 0;

if(!dom && !ns4)
{
	ie = 1;
}