function screen_size(image_color, html_color, dir, onload)
{
if (screen.width == 800 && screen.height == 600)
{
document.write('');
}
else if (screen.width == 1280 && screen.height == 1024)
{
document.write('');
}
else if (screen.width == 1280 && screen.height == 768)
{
document.write('');
}
else
{
document.write('');
}
}