function loadWindow(sUrl, sWndName, iWndWid, iWndHgt, bCentralPos)
	{ 
		var iLeft, iTop; 
		if(bCentralPos) 
			{ 
				// If wanted centralised, so calculate. 
				var centerX = screen.availWidth/2;
				var centerY = screen.availHeight/2; 
			} 
			var tmpX = (iWndWid/2); 
			var tmpY = (iWndHgt/2); 
			tmpX = centerX-(iWndWid/2); 
			tmpY = centerY-(iWndHgt/2); 
			var tmp = window.open(sUrl,sWndName,'width=' + iWndWid + ',height=' + iWndHgt + ',top=' + tmpY + ',left=' + tmpX + ',scrollbars=yes,resizable=no'); 
	}