version=parseInt(navigator.appVersion);
if (navigator.appVersion.indexOf('5.')>-1){version=5};
if (navigator.appVersion.indexOf('6.')>-1){version=6}; 
if (navigator.appVersion.indexOf('7.')>-1){version=7}; browser='OTHER'; 
if (navigator.appName=='Netscape'){browser='NS'+version;} 
if (navigator.appName=='Microsoft Internet Explorer'){browser='MSIE'+version;} 
if (navigator.appVersion.indexOf('MSIE 3')>0) {browser='MSIE3';} 
if(browser == 'NS5'){browser='NS6'};
if (browser=='NS3') {window.location='netscape.asp'}
if (browser=='NS4') {window.location='netscape.asp'}
if (browser=='NS6') {window.location='netscape.asp'}
if (browser=='NS7') {window.location='netscape.asp'}