var height = screen.height;
var width = screen.width;
if ( height == 1200 && width == 1600 ) {
document.write('');
} else if ( height == 1024 && width == 1280 ) {
document.write('');
} else if ( height == 768 && width == 1024 ) {
document.write('');
} else if ( height == 600 && width == 800 ) {
document.write('');
} else if ( height == 480 && width == 640 ) {
document.write('');
} else {
document.write('');
}