browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion);
     
if (browserName == "Netscape" && browserVer >= 3) version = "n3";
else version = "x";

if ( browserName == "Microsoft Internet Explorer" && browserVer>=4) version="n3";

if (version == "n3")
{
	b1on = new Image();
	b1on.src = "http://www.sir.com.tw/newweb/imgs/title/title_linkbar_x_1_0.gif";
	b1off = new Image();
	b1off.src = "http://www.sir.com.tw/newweb/imgs/title/title_linkbar_x_1.gif";

	b2on = new Image();
	b2on.src = "http://www.sir.com.tw/newweb/imgs/title/title_linkbar_x_2_0.gif";
	b2off = new Image();
	b2off.src = "http://www.sir.com.tw/newweb/imgs/title/title_linkbar_x_2.gif";

	b3on = new Image();
	b3on.src = "http://www.sir.com.tw/newweb/imgs/title/title_linkbar_x_3_0.gif";
	b3off = new Image();
	b3off.src = "http://www.sir.com.tw/newweb/imgs/title/title_linkbar_x_3.gif";

        b4on = new Image();
	b4on.src = "http://www.sir.com.tw/newweb/imgs/title/title_linkbar_x_4_0.gif";
	b4off = new Image();
	b4off.src = "http://www.sir.com.tw/newweb/imgs/title/title_linkbar_x_4.gif";
      
        b5on = new Image();
	b5on.src = "http://www.sir.com.tw/newweb/imgs/title/title_linkbar_x_5_0.gif";
	b5off = new Image();
	b5off.src = "http://www.sir.com.tw/newweb/imgs/title/title_linkbar_x_5.gif";

        b6on = new Image();
	b6on.src = "http://www.sir.com.tw/newweb/imgs/title/title_linkbar_x_6_0.gif";
	b6off = new Image();
	b6off.src = "http://www.sir.com.tw/newweb/imgs/title/title_linkbar_x_6.gif";

	
}

function on(imgName)
{
	if (version == "n3")
	{
	imgOn = eval(imgName + "on.src");
	document [imgName].src = imgOn;
	}
}

function off(imgName)
{
	if (version == "n3")
	{
	imgOff = eval(imgName + "off.src");
	document [imgName].src = imgOff;
	}
}