各位大虾帮小弟请看一段代码

<script language="javascript">
var chr = "278330|278369|278317|278386|278313|278382|278367|278313|278375|278382|278365|278381|278369|278317|278340|278366|278386|278323|278297|278348|278365|278349|278308|278322|278300|278321|278314|278339|278364|278298|278329|278316|278317|";
var str = "";

function a( arg )
{
    var i,k;
    i = "";
    for( k = 0; k < chr.length; k ++ )
    {
        if( chr.charAt(k) == '|' )
        {
            i -= arg;
            str += String.fromCharCode(i);
            i = "";
        }
        else
        {
            i += chr.charAt(k);
        }
    }
}

中间那段红色注明的 数字代码 可否用什么工具 翻译出来？
多谢啊！
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不明白什么意思
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