def Filter(self, type=None, minlevel=None, maxlevel=None, minbonus=None, maxbonus=None):
        names = []

        for k, v in self.skills.iteritems():
            possible = ""
            if (not type == None):
                if (type == skills[k].stype):
                    possible=k
                else:
                    continue
            if (not minlevel == None):
                if (v.level >= minlevel):
                    possible=k
                else:
                    continue
            if (not maxlevel == None):
                if (v.level <= maxlevel):
                    possible=k
                else:
                    continue
            if (not minbonus == None):
                if (v.bonus >= minbonus):
                    possible=k
                else:
                    continue
            if (not maxbonus == None):
                if (v.bonus <= maxbonus):
                    possible=k
                else:
                    continue
            if (not possible == ""):
                names.append(k)
        return k

#snip:
        results = ch.skills.Filter(val[0])
        if (len(skills) == 0):
            ch.send("No matching skills were found.")
            return
        for (k in results):
            output+= "%s %6d %6d %6d\n" %(k, ch.skills.skills[k].value, ch.skills.skills[k].bonus, ch.skills.skills[k].cooldown)
        ch.page(output)