function MM_checkBrowser(NSvers, NSnewvers, NSpass,NSnoPass,IEvers,IEpass,IEnoPass,OBpass,URL,altURL) {
  
  var 	newURL='', 
  	verStr=navigator.appVersion, 
  	app=navigator.appName, 
  	version = parseFloat(verStr);
  
  if (app.indexOf('Netscape') != -1) {
    	if (version >= NSvers && version < 4.8) {if (NSpass>0) newURL=(NSpass==1)?URL:altURL;}
    	else {if (NSnoPass>0) newURL=(NSnoPass==1)?URL:altURL;}
		if (version >= NSnewvers) {newURL=URL;}
  } else if (app.indexOf('Microsoft') != -1) {
    	if (version >= IEvers || verStr.indexOf(IEvers) != -1) {
     		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.MM_returnValue=false; 
  }
}