if (isEqual(ele->pinst->type, type)) return ele;
if (isEqual(ele->value, type)) return TRUE;
isExist(MimeTypeElement **typelist, NPMIMEType type){    MimeTypeElement *ele;    ele = *typelist;    while (ele != NULL) {        if (isEqual(ele->pinst->type, type))            return ele;        ele = ele->next;    }    return NULL;}