function toUTF8(szInput)
{
    var wch,x,uch="",szRet="";
    for (x=0; x<szInput.length; x++)
    {
        wch=szInput.charCodeAt(x);
        if (!(wch & 0xFF80))
        {
            szRet += "%" + wch.toString(16);
        }
        else if (!(wch & 0xF000))
        {
            uch = "%" + (wch>>6 | 0xC0).toString(16) + "%" + (wch & 0x3F | 0x80).toString(16);
            szRet += uch;
        }
        else
        {
            uch = "%" + (wch >> 12 | 0xE0).toString(16) + "%" + (((wch >> 6) & 0x3F) | 0x80).toString(16) + "%" + (wch & 0x3F | 0x80).toString(16);
            szRet += uch;
        }
    }
    return(szRet);
}