中文在js的傳輸問題

中文to utf
<script type ="text/javascript" ><!--
function mm(str)
{
    var sw = document.getElementById("show");
    if(str==""){sw.value=""; return; }
    var a = str.split(""); //author: meizz
    for(var i=0; i<a.length; i++)
    {
        if(/[\u4e00-\u9fa5\uf900-\ufa2d\uFE30-\uFFA0]/.test(a[i]))
        {
            a[i] = "\\u"+ a[i].charCodeAt(0).toString(16);
        }
    }
    sw.value = a.join("");
}
//--></script>

cun chinese or eng num

 For i = 0 To Int(show.Value.Trim.Length / 6) - 1
            Dim c As Char = Convert.ChangeType(Convert.ToInt32(show.Value.Trim.Substring(2 + 6 * i, 4), 16), TypeCode.Char)
            Me.Label1.Text += New String(c, 1)
        Next
        If Me.Label1.Text.Trim = "" Then
            Me.Label1.Text = Me.show.Value.Trim
        End If