4e00~9fa5

<script>
function init (){
    var begin = 0x4e00;
    var end = 0x9fa5;
    var str = '';
    for(var a=begin; a<=end; a+=1){
        var astr = a.toString(16);
        str += '<span title="'+astr+'">'+unescape('%u'+astr)+'</span>';
    }
    document.body.innerHTML=str;
}
window.onload=init;
</script>