For example, if the user clicks on Weather Server 26, {HEAD ~ the path} from {TAIL ~ User PC} 20 to Weather Server 26, which consists of graphical links 10, 11 and 15, would switch from grey to flashing green 
For example , if the user clicks on Weather Server 26 , { HEAD ~ the path } from { TAIL ~ User PC } 20 to Weather Server 26 , which consists of graphical links 10 , 11 and 15 , would switch from grey to flashing green
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH