function CheckBrowser(NSvers,NSpass,NSnoPass,IEvers,IEpass,IEnoPass,OBpass,URL,altURL) { 
  var newURL = '', version = parseFloat(navigator.appVersion);
  if (navigator.appName.indexOf('Netscape') != -1) 
  {
    if (version >= NSvers) 
		{if (NSpass>0) newURL = (NSpass==1)?URL:altURL;}
    	else
			 {if (NSnoPass>0) newURL = (NSnoPass==1)?URL:altURL;}
  	} 
   else if (navigator.appName.indexOf('Microsoft') != -1) {
    	if (version >= IEvers) 
			{if (IEpass>0) newURL = (IEpass==1)?URL:altURL;}
        else {if (IEnoPass>0) newURL = (IEnoPass==1)?URL:altURL;}
		
 	 } else if (OBpass>0) newURL = (OBpass==1)?URL:altURL;
  if (newURL) {
    window.location = unescape(newURL);
    document.ReturnValue = false;
  }
}