var screenWidth = 800;
var screenHeight = 600;
if (navigator.appName.substring(0,9) != "Microsoft" && navigator.javaEnabled())
{
var toolkit = java.awt.Toolkit.getDefaultToolkit();
var screen_size = toolkit.getScreenSize();
screenWidth = screen_size.width;
}
else
{
screenWidth = screen.width;
}
if (screenWidth <= 800)
{
screenWidth = 800;
}
else
{
screenWidth = 1024;
}
backString = "Fundo" + screenWidth + ".jpg";
startString= "";
document.write (startString + backString + endString);