browser = navigator.appName;
version = parseInt(navigator.appVersion);
    if ((browser == "Netscape" && version >= 3) || 
        (browser == "Microsoft Internet Explorer" && version >= 4)) dynamic = "YES";
    else dynamic = "NO";

if (dynamic== "YES") 
  {	
				imgeventioff = new Image();
        imgeventioff.src = "images/europa.jpg";     
        imgevention = new Image();
        imgevention.src = "images/europa_over.jpg";

    }

function testImg(imgName) 
{
  if (document[imgName].src == eval(imgName + "on.src"))
	 return true;
	else
	 return false;
	 
}
		

function imgIn(imgName) 
{
  document[imgName].src = eval(imgName + "on.src");
}

function imgOut(imgName) 
{
   document[imgName].src = eval(imgName + "off.src");
}