window.onerror=null;
browserName = navigator.appName;
browserVer = parseInt(navigator.appVersion.substring(0,4));

if((browserName=="Netscape" && browserVer >= 3) || (browserName=="Microsoft Internet Explorer" && browserVer >= 4)) ver = "yes";
else ver = "no";

if(ver == "yes") {
		a1 = new Image(); a1.src ="gfx/2.gif";
        a2 = new Image(); a2.src ="gfx/2a.gif";
        
        b1 = new Image(); b1.src ="gfx/3.gif";
        b2 = new Image(); b2.src ="gfx/3a.gif";
		
		c1 = new Image(); c1.src ="gfx/4.gif";
		c2 = new Image(); c2.src ="gfx/4a.gif";
		
		d1 = new Image(); d1.src ="gfx/5.gif";
		d2 = new Image(); d2.src ="gfx/5a.gif";
		
		e1 = new Image(); e1.src ="gfx/6.gif";
		e2 = new Image(); e2.src ="gfx/6a.gif";
}

function active(imgName)
{
        if (ver == "yes")  {
	        img1 = eval(imgName + "1.src");
			document [imgName].src = img1;
        }
}



function inactive(imgName)
{
        if (ver == "yes")  {
	        img2 = eval(imgName + "2.src");
    	    document [imgName].src = img2;
	    }
}