<!--
				function GetDomOffset( Obj, Prop ) {
					var iVal = 0;
					while (Obj && Obj.tagName != "BODY") {
						eval('iVal += Obj.' + Prop + ';');
						Obj = Obj.offsetParent;
					}
					return iVal;
				}
			
				function follow_extrasky()
				{
			
					var xtrsky = document.getElementById('extraskyfollow');
					if(xtrsky)
					{
						var offset = (navigator.appName=="Microsoft Internet Explorer") ? document.body.scrollTop : window.pageYOffset;
						offset = Math.abs(1*offset)
			
						var height = document.getElementById('extraskyfollow') ? GetDomOffset( document.getElementById('extraskybottom'), 'offsetTop' ) : 0;
						height = Math.abs(1*height);
						var bottom = offset + height;
						var maxi = document.getElementById('extraskymaximum') ? GetDomOffset( document.getElementById('extraskymaximum'), 'offsetTop' ) : 0;
						maxi = Math.abs(1*maxi) + xtrskyori - 5;
						//window.status = "offset="+offset+"; bottom="+bottom+"; maxi="+maxi+"; origin="+xtrskyori;
						var y = offset<xtrskyori ? 0 : offset - xtrskyori;
						xtrsky.style.top = bottom<maxi ? y : maxi - height - xtrskyori;
						var t0 = setTimeout("follow_extrasky()",200);
					}
				}
			
				if( document.getElementById('extraskyfollow') )
				{
					var xtrskyori = GetDomOffset( document.getElementById('extraskyfollow'), 'offsetTop' );
					xtrskyori = Math.abs(1*xtrskyori);
					follow_extrasky();
				}
				//-->