función String10To62 (número) {var chars = '0123456789abcdefghigklmnopqrstuvwxyzabcdefghigklmnopqrstuvwxyz'.split (' '), radix = charslength, qutient = +number, arr = []; do {mod = qutient % radix; qutient = (qutient - mod) / radix; arr.unshift (chars [mod]); } while (qutient); return arr.Join ('');} function String62To10 (number_code) {var chars = '0123456789abcdefghigklmnopqrstuvwxyzabcdefghgklmnopqrstuvwxyz', radix = chars.length, number_code = string (number_code), len = number umber origen_number = 0; while (i <len) {origen_number+= math.pow (radix, i ++) * chars.indexof (number_code.charat (len - i) || 0); } return origin_number;}