/* This code is Copyright (c)1996-99 by doZE!gfx */

	browserName = navigator.appName;
	browserVer = parseInt(navigator.appVersion);
	if ((browserName == "Netscape" && browserVer >= 3) | (browserVer >=4)) version ="yes";
		else version = "no";

	if (version == "yes") {
		thn1on = new Image();
		thn1on.src = "images/nav/thn_overview_r.gif";
		thn2on = new Image();
		thn2on.src = "images/nav/thn_strategy_r.gif";
		thn3on = new Image();
		thn3on.src = "images/nav/thn_approach_r.gif";
		thn4on = new Image();
		thn4on.src = "images/nav/thn_management_team_r.gif";
		thn5on = new Image();
		thn5on.src = "images/nav/thn_brochure_pdf_r.gif";
		
		thn1off = new Image();
		thn1off.src = "images/nav/thn_overview_n.gif";
		thn2off = new Image();
		thn2off.src = "images/nav/thn_strategy_n.gif";
		thn3off = new Image();
		thn3off.src = "images/nav/thn_approach_n.gif";
		thn4off = new Image();
		thn4off.src = "images/nav/thn_management_team_n.gif";
		thn5off = new Image();
		thn5off.src = "images/nav/thn_brochure_pdf_n.gif";
		
	}

	function img_act(imgName) {
		if (version == "yes") {
			imgOn = eval(imgName + "on.src");
			document [imgName].src = imgOn;
		}
	}

	function img_inact(imgName) {
		if (version == "yes") {
			imgOff = eval(imgName + "off.src");
			document [imgName].src = imgOff;
		}
	}