搜索关键字分割问题

我下面这段代码中
JScript code

keytext = request("keyword")
for i = 0 to len("keytext")-2
    response.write mid(keytext, i, 2) & ","
next

    keyword = replace(nowkeyword,","," ")
    keyword = replace(nowkeyword,"|"," ")
    keyword=ltrim(rtrim(keyword))
    nowkey=split(keyword)

response.write mid(keytext, i, 2) & ","

如何把上面这句输出调用到下面的关键字中
JScript code

    keyword = replace(nowkeyword,","," ")
    keyword = replace(nowkeyword,"|"," ")
    keyword=ltrim(rtrim(keyword))
    nowkey=split(keyword)

这样在搜索关键字时不需要用空格来隔开了,系统自动分割关键字,以做到真模糊搜索.
也说是说,如何我输入"做到真模糊"系统自动分害为“做到,到真,真模,模糊”这样的关键字，
但用response.write mid(keytext, i, 2) & "," 这句已经可以输出这样的关键字分割，以豆号隔开的，要如何调用上去。

这个不是前台这么简单做的

需要 后台业务系统的 分词