var newWHwindow = null;
var WHwindow = null;

var WHPath = "";	       //	eg: "userhelp/"  - help is in a subdirectory
var WHproject = "";      //	eg: "project.htm#"
var CStopic = "";	       //	eg: "CSH_topic_number_12.htm"

function callHelp(WHPath, WHproject, CStopic){

var WinleftRel = (screen.width - 550);
var WHspecs = " top=0, left=" + WinleftRel + ", height=450, resizable=yes, width=550, toolbar='no', status='no'";
   if (navigator.appName == "Netscape"){
	WHwindow = window.open("", newWHwindow, WHspecs);
	WHwindow.close();
	WHwindow = window.open("", newWHwindow, WHspecs);
	WHwindow.location.href = WHPath + WHproject + CStopic;
	WHwindow.focus();
      }
   else if (WHwindow == null || WHwindow.closed){
	WHwindow = window.open("", newWHwindow, WHspecs);
	WHwindow.location.href = WHPath + WHproject + CStopic;
	}
	else if (WHwindow && !WHwindow.closed){
	  if (WHwindow.bsscright)  {
	     WHwindow.bsscright.location.href = WHPath + CStopic;
	     WHwindow.focus();
	     }
	  else  {
              WHwindow = window.open("", newWHwindow, WHspecs);
              WHwindow.location.href = WHPath + WHproject + CStopic;
              }
	 }
   }


function CleanHelp(url_strng, Scrl, Wintop, Winleft, Winheight, Winwidth)
{
var Scrll ="auto";
var WinleftRel = (screen.width - Winwidth - Winleft);

var W_basic = "'location=no";
W_basic += ",toolbar=no";
W_basic += ",menubar=no";
W_basic += ",scrollbars=";
W_basic += Scrll;
W_basic += ",status=no";
W_basic += ",resizable=yes";
W_basic += ",top=";
W_basic += Wintop;
W_basic += ",left=";
W_basic += WinleftRel;
W_basic += ",width=";
W_basic += Winwidth;
W_basic += ",height=";
W_basic += Winheight;
W_basic += "'";

WHwindow=window.open(url_strng, newWHwindow, W_basic);
WHwindow.focus();
}