switch(screen.width) {
 	case 640: goToPage('http://www.soundflex.nl/sfe1280/index.html'); break;
 	case 720: goToPage('http://www.soundflex.nl/sfe1280/index.html'); break;
 	case 800: goToPage('http://www.soundflex.nl/sfe1280/index.html'); break;
 	case 848: goToPage('http://www.soundflex.nl/sfe1280/index.html'); break;
 	case 1024: goToPage('http://www.soundflex.nl/sfe1280/index.html'); break;
 	case 1152: goToPage('http://www.soundflex.nl/sfe1280/index.html'); break;
 	case 1280: goToPage('http://www.soundflex.nl/sfe1280/index.html'); break;
	case 1440: goToPage('http://www.soundflex.nl/sfe/index.html'); break;
 	case 1600: goToPage('http://www.soundflex.nl/sfe1600/index.html'); break;
	case 1680: goToPage('http://www.soundflex.nl/sfe1600/index.html'); break;
	case 1768: goToPage('http://www.soundflex.nl/sfe1600/index.html'); break;
	case 1920: goToPage('http://www.soundflex.nl/sfe1600/index.html'); break;
 	default : goToPage('http://www.soundflex.nl/sfe1280/index.html'); break;
}

function goToPage(url) {
window.top.location = url;
}