<script LANGUAGE="JavaScript">
var axu_url800x600="800.css"; //设置变量axu_url800x600 样式:1.css
var axu_url1024x768="1024.css"; //设置变量axu_url1024x768 样式:2.css
if((screen.width==800)&&(screen.height==600))
document.getElementById("skin").href=axu_url800x600; //判断分辨率是800x600调用1.css
else if((screen.width==1024)&&(screen.height==768))
document.getElementById("skin").href=axu_url1024x768; //判断分辨率是1024x768调用2.css
else document.getElementById("skin").href=axu_url1024x768; //否则 调用2.css
</script>
准备 800.css 和 1024.css 里面设置不同的大小!