function unFrame() {
	if (self != top)
	top.location.href = self.location.href;
}

function LoadScript(url){
document.write('<script src="', url, '" type="text/javascript"><\/script>');
}   

function LoadStyle(url){
document.write('<link rel="stylesheet" href="', url, '" type="text/css">');
}   

if (screen.height >= 1024 && screen.width >= 1280){
LoadScript("Het_Mainpage_1280.js");
LoadStyle("Het_Mainpage_1280.css");
}
else if (screen.height >= 768 && screen.width >= 1024){
LoadScript("Het_Mainpage_1024.js");
LoadStyle("Het_Mainpage_1024.css");
}
else if (screen.height >= 600 && screen.width >= 800){
LoadScript("Het_Mainpage_800.js");
LoadStyle("Het_Mainpage_800.css");
}
else{
LoadScript("Het_Mainpage_640.js");
LoadStyle("Het_Mainpage_640.css");
}