diff --git a/dist/ethereum.js b/dist/ethereum.js
index 69abcad..3dc31a9 100644
--- a/dist/ethereum.js
+++ b/dist/ethereum.js
@@ -1865,10 +1865,13 @@ var unitMap = {
 };
 
 
-/// Finds first index of array element matching pattern
-/// @param array
-/// @param callback pattern
-/// @returns index of element
+/** Finds first index of array element matching pattern
+ *
+ * @method findIndex
+ * @param {Array}
+ * @param {Function} pattern
+ * @returns {Number} index of element
+ */
 var findIndex = function (array, callback) {
     var end = false;
     var i = 0;
@@ -1878,7 +1881,13 @@ var findIndex = function (array, callback) {
     return end ? i - 1 : -1;
 };
 
-/// @returns ascii string representation of hex value prefixed with 0x
+/** 
+ * Should be called to get sting from it's hex representation
+ *
+ * @method toAscii
+ * @param {String} string in hex
+ * @returns {String} ascii string representation of hex value
+ */
 var toAscii = function(hex) {
 // Find termination
     var str = "";
@@ -1898,6 +1907,13 @@ var toAscii = function(hex) {
     return str;
 };
     
+/**
+ * Shold be called to get hex representation (prefixed by 0x) of ascii string 
+ *
+ * @method fromAscii
+ * @param {String} string
+ * @returns {String} hex representation of input string
+ */
 var toHexNative = function(str) {
     var hex = "";
     for(var i = 0; i < str.length; i++) {
@@ -1908,7 +1924,14 @@ var toHexNative = function(str) {
     return hex;
 };
 
-/// @returns hex representation (prefixed by 0x) of ascii string
+/**
+ * Shold be called to get hex representation (prefixed by 0x) of ascii string 
+ *
+ * @method fromAscii
+ * @param {String} string
+ * @param {Number} optional padding
+ * @returns {String} hex representation of input string
+ */
 var fromAscii = function(str, pad) {
     pad = pad === undefined ? 0 : pad;
     var hex = toHexNative(str);
@@ -1917,7 +1940,13 @@ var fromAscii = function(str, pad) {
     return "0x" + hex;
 };
 
-/// @returns display name for function/event eg. multiply(uint256) -> multiply
+/**
+ * Should be called to get display name of contract function
+ * 
+ * @method extractDisplayName
+ * @param {String} name of function/event
+ * @returns {String} display name for function/event eg. multiply(uint256) -> multiply
+ */
 var extractDisplayName = function (name) {
     var length = name.indexOf('('); 
     return length !== -1 ? name.substr(0, length) : name;
@@ -1930,16 +1959,26 @@ var extractTypeName = function (name) {
     return length !== -1 ? name.substr(length + 1, name.length - 1 - (length + 1)).replace(' ', '') : "";
 };
 
-/// Filters all function from input abi
-/// @returns abi array with filtered objects of type 'function'
+/**
+ * Filters all functions from input abi
+ *
+ * @method filterFunctions
+ * @param {Array} abi
+ * @returns {Array} abi array with filtered objects of type 'function'
+ */
 var filterFunctions = function (json) {
     return json.filter(function (current) {
         return current.type === 'function'; 
     }); 
 };
 
-/// Filters all events form input abi
-/// @returns abi array with filtered objects of type 'event'
+/**
+ * Filters all events from input abi
+ *
+ * @method filterEvents
+ * @param {Array} abi
+ * @returns {Array} abi array with filtered objects of type 'event'
+ */
 var filterEvents = function (json) {
     return json.filter(function (current) {
         return current.type === 'event';
diff --git a/dist/ethereum.js.map b/dist/ethereum.js.map
index b140d80..a95921c 100644
--- a/dist/ethereum.js.map
+++ b/dist/ethereum.js.map
@@ -24,7 +24,7 @@
     "index.js"
   ],
   "names": [],
-  "mappings": 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   "file": "generated.js",
   "sourceRoot": "",
   "sourcesContent": [
@@ -45,7 +45,7 @@
     "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file shh.js\n * @authors:\n *   Marek Kotewicz <marek@ethdev.com>\n * @date 2015\n */\n\nvar formatters = require('./formatters');\n\n/// @returns an array of objects describing web3.shh api methods\nvar methods = function () {\n    return [\n    { name: 'post', call: 'shh_post', inputFormatter: formatters.inputPostFormatter },\n    { name: 'newIdentity', call: 'shh_newIdentity' },\n    { name: 'hasIdentity', call: 'shh_hasIdentity' },\n    { name: 'newGroup', call: 'shh_newGroup' },\n    { name: 'addToGroup', call: 'shh_addToGroup' },\n\n    // deprecated\n    { name: 'haveIdentity', call: 'shh_haveIdentity', newMethod: 'shh.hasIdentity' },\n    ];\n};\n\nmodule.exports = {\n    methods: methods\n};\n\n",
     "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file signature.js\n * @authors:\n *   Marek Kotewicz <marek@ethdev.com>\n * @date 2015\n */\n\nvar web3 = require('./web3'); \nvar c = require('./config');\n\n/// @param function name for which we want to get signature\n/// @returns signature of function with given name\nvar functionSignatureFromAscii = function (name) {\n    return web3.sha3(web3.fromAscii(name)).slice(0, 2 + c.ETH_SIGNATURE_LENGTH * 2);\n};\n\n/// @param event name for which we want to get signature\n/// @returns signature of event with given name\nvar eventSignatureFromAscii = function (name) {\n    return web3.sha3(web3.fromAscii(name));\n};\n\nmodule.exports = {\n    functionSignatureFromAscii: functionSignatureFromAscii,\n    eventSignatureFromAscii: eventSignatureFromAscii\n};\n\n",
     "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file types.js\n * @authors:\n *   Marek Kotewicz <marek@ethdev.com>\n * @date 2015\n */\n\nvar f = require('./formatters');\n\n/// @param expected type prefix (string)\n/// @returns function which checks if type has matching prefix. if yes, returns true, otherwise false\nvar prefixedType = function (prefix) {\n    return function (type) {\n        return type.indexOf(prefix) === 0;\n    };\n};\n\n/// @param expected type name (string)\n/// @returns function which checks if type is matching expected one. if yes, returns true, otherwise false\nvar namedType = function (name) {\n    return function (type) {\n        return name === type;\n    };\n};\n\n/// Setups input formatters for solidity types\n/// @returns an array of input formatters \nvar inputTypes = function () {\n    \n    return [\n        { type: prefixedType('uint'), format: f.formatInputInt },\n        { type: prefixedType('int'), format: f.formatInputInt },\n        { type: prefixedType('hash'), format: f.formatInputInt },\n        { type: prefixedType('string'), format: f.formatInputString }, \n        { type: prefixedType('real'), format: f.formatInputReal },\n        { type: prefixedType('ureal'), format: f.formatInputReal },\n        { type: namedType('address'), format: f.formatInputInt },\n        { type: namedType('bool'), format: f.formatInputBool }\n    ];\n};\n\n/// Setups output formaters for solidity types\n/// @returns an array of output formatters\nvar outputTypes = function () {\n\n    return [\n        { type: prefixedType('uint'), format: f.formatOutputUInt },\n        { type: prefixedType('int'), format: f.formatOutputInt },\n        { type: prefixedType('hash'), format: f.formatOutputHash },\n        { type: prefixedType('string'), format: f.formatOutputString },\n        { type: prefixedType('real'), format: f.formatOutputReal },\n        { type: prefixedType('ureal'), format: f.formatOutputUReal },\n        { type: namedType('address'), format: f.formatOutputAddress },\n        { type: namedType('bool'), format: f.formatOutputBool }\n    ];\n};\n\nmodule.exports = {\n    prefixedType: prefixedType,\n    namedType: namedType,\n    inputTypes: inputTypes,\n    outputTypes: outputTypes\n};\n\n",
-    "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file utils.js\n * @authors:\n *   Marek Kotewicz <marek@ethdev.com>\n * @date 2015\n */\n\nif (\"build\" !== 'build') {/*\n    var BigNumber = require('bignumber.js'); // jshint ignore:line\n*/}\n\nvar unitMap = {\n    'wei':      '1',\n    'kwei':     '1000',\n    'ada':      '1000',\n    'mwei':     '1000000',\n    'babbage':  '1000000',\n    'gwei':     '1000000000',\n    'shannon':  '1000000000',\n    'szabo':    '1000000000000',\n    'finney':   '1000000000000000',\n    'ether':    '1000000000000000000',\n    'kether':   '1000000000000000000000',\n    'grand':    '1000000000000000000000',\n    'einstein': '1000000000000000000000',\n    'mether':   '1000000000000000000000000',\n    'gether':   '1000000000000000000000000000',\n    'tether':   '1000000000000000000000000000000'\n};\n\n\n/// Finds first index of array element matching pattern\n/// @param array\n/// @param callback pattern\n/// @returns index of element\nvar findIndex = function (array, callback) {\n    var end = false;\n    var i = 0;\n    for (; i < array.length && !end; i++) {\n        end = callback(array[i]);\n    }\n    return end ? i - 1 : -1;\n};\n\n/// @returns ascii string representation of hex value prefixed with 0x\nvar toAscii = function(hex) {\n// Find termination\n    var str = \"\";\n    var i = 0, l = hex.length;\n    if (hex.substring(0, 2) === '0x') {\n        i = 2;\n    }\n    for (; i < l; i+=2) {\n        var code = parseInt(hex.substr(i, 2), 16);\n        if (code === 0) {\n            break;\n        }\n\n        str += String.fromCharCode(code);\n    }\n\n    return str;\n};\n    \nvar toHexNative = function(str) {\n    var hex = \"\";\n    for(var i = 0; i < str.length; i++) {\n        var n = str.charCodeAt(i).toString(16);\n        hex += n.length < 2 ? '0' + n : n;\n    }\n\n    return hex;\n};\n\n/// @returns hex representation (prefixed by 0x) of ascii string\nvar fromAscii = function(str, pad) {\n    pad = pad === undefined ? 0 : pad;\n    var hex = toHexNative(str);\n    while (hex.length < pad*2)\n        hex += \"00\";\n    return \"0x\" + hex;\n};\n\n/// @returns display name for function/event eg. multiply(uint256) -> multiply\nvar extractDisplayName = function (name) {\n    var length = name.indexOf('('); \n    return length !== -1 ? name.substr(0, length) : name;\n};\n\n/// @returns overloaded part of function/event name\nvar extractTypeName = function (name) {\n    /// TODO: make it invulnerable\n    var length = name.indexOf('(');\n    return length !== -1 ? name.substr(length + 1, name.length - 1 - (length + 1)).replace(' ', '') : \"\";\n};\n\n/// Filters all function from input abi\n/// @returns abi array with filtered objects of type 'function'\nvar filterFunctions = function (json) {\n    return json.filter(function (current) {\n        return current.type === 'function'; \n    }); \n};\n\n/// Filters all events form input abi\n/// @returns abi array with filtered objects of type 'event'\nvar filterEvents = function (json) {\n    return json.filter(function (current) {\n        return current.type === 'event';\n    });\n};\n\n/**\n * Converts value to it's decimal representation in string\n *\n * @method toDecimal\n * @param {String|Number|BigNumber}\n * @return {String}\n */\nvar toDecimal = function (value) {\n    return toBigNumber(value).toString(10);\n};\n\n/**\n * Converts value to it's hex representation\n *\n * @method fromDecimal\n * @param {String|Number|BigNumber}\n * @return {String}\n */\nvar fromDecimal = function (value) {\n    return toHex(value);\n};\n\n/**\n * Converts value to it's hex representation\n *\n * @method toHex\n * @param {String|Number|BigNumber}\n * @return {String}\n */\nvar toHex = function (value) {\n    var number = toBigNumber(value);\n    var result = number.toString(16);\n    if (number.lessThan(0)) {\n        return '-0x' + result.substr(1);  \n    }\n    return '0x' + result; \n};\n\n/**\n * Returns value of unit in Wei\n *\n * @method getValueOfUnit\n * @param {String} unit the unit to convert to, default ether\n * @returns {BigNumber} value of the unit (in Wei)\n * @throws error if the unit is not correct:w\n */\nvar getValueOfUnit = function (unit) {\n    unit = unit ? unit.toLowerCase() : 'ether';\n    var unitValue = unitMap[unit];\n    if (unitValue === undefined) {\n        throw new Error('This unit doesn\\'t exists, please use the one of the following units' + JSON.stringify(unitMap, null, 2));\n    }\n    return new BigNumber(unitValue, 10);\n};\n\n/**\n * Takes a number of wei and converts it to any other ether unit.\n *\n * Possible units are:\n * - kwei/ada\n * - mwei/babbage\n * - gwei/shannon\n * - szabo\n * - finney\n * - ether\n * - kether/grand/einstein\n * - mether\n * - gether\n * - tether\n *\n * @method fromWei\n * @param {Number|String} number can be a number, number string or a HEX of a decimal\n * @param {String} unit the unit to convert to, default ether\n * @return {String|Object} When given a BigNumber object it returns one as well, otherwise a number\n*/\nvar fromWei = function(number, unit) {\n    return toBigNumber(number).dividedBy(getValueOfUnit(unit)).toString(10);\n};\n\n/**\n * Takes a number of a unit and converts it to wei.\n *\n * Possible units are:\n * - kwei/ada\n * - mwei/babbage\n * - gwei/shannon\n * - szabo\n * - finney\n * - ether\n * - kether/grand/einstein\n * - mether\n * - gether\n * - tether\n *\n * @method toWei\n * @param {Number|String|BigNumber} number can be a number, number string or a HEX of a decimal\n * @param {String} unit the unit to convert from, default ether\n * @return {String|Object} When given a BigNumber object it returns one as well, otherwise a number\n*/\nvar toWei = function(number, unit) {\n    return toBigNumber(number).times(getValueOfUnit(unit)).toString(10);\n};\n\n/**\n * Takes an input and transforms it into an bignumber\n *\n * @method toBigNumber\n * @param {Number|String|BigNumber} a number, string, HEX string or BigNumber\n * @return {Object} BigNumber\n*/\nvar toBigNumber = function(number) {\n    number = number || 0;\n    if (isBigNumber(number))\n        return number;\n\n    // TODO: check if we need to check for hex here\n    return new BigNumber(number.toString(10), 10);\n};\n\n/**\n * Checks if the given string has proper length\n *\n * @method isAddress\n * @param {String} address the given HEX adress\n * @return {Boolean}\n*/\nvar isAddress = function(address) {\n    return ((address.indexOf('0x') === 0 && address.length === 42) ||\n            (address.indexOf('0x') === -1 && address.length === 40));\n};\n\n/**\n * Returns true if object is BigNumber, otherwise false\n *\n * @method isBigNumber\n * @param {Object}\n * @return {Boolean} \n */\nvar isBigNumber = function (object) {\n    return object instanceof BigNumber ||\n        (object && object.constructor && object.constructor.name === 'BigNumber');\n};\n\n/**\n * Returns true if object is string, otherwise false\n * \n * @method isString\n * @param {Object}\n * @return {Boolean}\n */\nvar isString = function (object) {\n    return typeof object === 'string' ||\n        (object && object.constructor && object.constructor.name === 'String');\n};\n\n/**\n * Returns true if object is function, otherwise false\n *\n * @method isFunction\n * @param {Object}\n * @return {Boolean}\n */\nvar isFunction = function (object) {\n    return typeof object === 'function';\n};\n\nmodule.exports = {\n    findIndex: findIndex,\n    toHex: toHex,\n    toDecimal: toDecimal,\n    fromDecimal: fromDecimal,\n    toAscii: toAscii,\n    fromAscii: fromAscii,\n    extractDisplayName: extractDisplayName,\n    extractTypeName: extractTypeName,\n    filterFunctions: filterFunctions,\n    filterEvents: filterEvents,\n    toWei: toWei,\n    fromWei: fromWei,\n    toBigNumber: toBigNumber,\n    isBigNumber: isBigNumber,\n    isAddress: isAddress,\n    isFunction: isFunction,\n    isString: isString\n};\n\n",
+    "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file utils.js\n * @authors:\n *   Marek Kotewicz <marek@ethdev.com>\n * @date 2015\n */\n\nif (\"build\" !== 'build') {/*\n    var BigNumber = require('bignumber.js'); // jshint ignore:line\n*/}\n\nvar unitMap = {\n    'wei':      '1',\n    'kwei':     '1000',\n    'ada':      '1000',\n    'mwei':     '1000000',\n    'babbage':  '1000000',\n    'gwei':     '1000000000',\n    'shannon':  '1000000000',\n    'szabo':    '1000000000000',\n    'finney':   '1000000000000000',\n    'ether':    '1000000000000000000',\n    'kether':   '1000000000000000000000',\n    'grand':    '1000000000000000000000',\n    'einstein': '1000000000000000000000',\n    'mether':   '1000000000000000000000000',\n    'gether':   '1000000000000000000000000000',\n    'tether':   '1000000000000000000000000000000'\n};\n\n\n/** Finds first index of array element matching pattern\n *\n * @method findIndex\n * @param {Array}\n * @param {Function} pattern\n * @returns {Number} index of element\n */\nvar findIndex = function (array, callback) {\n    var end = false;\n    var i = 0;\n    for (; i < array.length && !end; i++) {\n        end = callback(array[i]);\n    }\n    return end ? i - 1 : -1;\n};\n\n/** \n * Should be called to get sting from it's hex representation\n *\n * @method toAscii\n * @param {String} string in hex\n * @returns {String} ascii string representation of hex value\n */\nvar toAscii = function(hex) {\n// Find termination\n    var str = \"\";\n    var i = 0, l = hex.length;\n    if (hex.substring(0, 2) === '0x') {\n        i = 2;\n    }\n    for (; i < l; i+=2) {\n        var code = parseInt(hex.substr(i, 2), 16);\n        if (code === 0) {\n            break;\n        }\n\n        str += String.fromCharCode(code);\n    }\n\n    return str;\n};\n    \n/**\n * Shold be called to get hex representation (prefixed by 0x) of ascii string \n *\n * @method fromAscii\n * @param {String} string\n * @returns {String} hex representation of input string\n */\nvar toHexNative = function(str) {\n    var hex = \"\";\n    for(var i = 0; i < str.length; i++) {\n        var n = str.charCodeAt(i).toString(16);\n        hex += n.length < 2 ? '0' + n : n;\n    }\n\n    return hex;\n};\n\n/**\n * Shold be called to get hex representation (prefixed by 0x) of ascii string \n *\n * @method fromAscii\n * @param {String} string\n * @param {Number} optional padding\n * @returns {String} hex representation of input string\n */\nvar fromAscii = function(str, pad) {\n    pad = pad === undefined ? 0 : pad;\n    var hex = toHexNative(str);\n    while (hex.length < pad*2)\n        hex += \"00\";\n    return \"0x\" + hex;\n};\n\n/**\n * Should be called to get display name of contract function\n * \n * @method extractDisplayName\n * @param {String} name of function/event\n * @returns {String} display name for function/event eg. multiply(uint256) -> multiply\n */\nvar extractDisplayName = function (name) {\n    var length = name.indexOf('('); \n    return length !== -1 ? name.substr(0, length) : name;\n};\n\n/// @returns overloaded part of function/event name\nvar extractTypeName = function (name) {\n    /// TODO: make it invulnerable\n    var length = name.indexOf('(');\n    return length !== -1 ? name.substr(length + 1, name.length - 1 - (length + 1)).replace(' ', '') : \"\";\n};\n\n/**\n * Filters all functions from input abi\n *\n * @method filterFunctions\n * @param {Array} abi\n * @returns {Array} abi array with filtered objects of type 'function'\n */\nvar filterFunctions = function (json) {\n    return json.filter(function (current) {\n        return current.type === 'function'; \n    }); \n};\n\n/**\n * Filters all events from input abi\n *\n * @method filterEvents\n * @param {Array} abi\n * @returns {Array} abi array with filtered objects of type 'event'\n */\nvar filterEvents = function (json) {\n    return json.filter(function (current) {\n        return current.type === 'event';\n    });\n};\n\n/**\n * Converts value to it's decimal representation in string\n *\n * @method toDecimal\n * @param {String|Number|BigNumber}\n * @return {String}\n */\nvar toDecimal = function (value) {\n    return toBigNumber(value).toString(10);\n};\n\n/**\n * Converts value to it's hex representation\n *\n * @method fromDecimal\n * @param {String|Number|BigNumber}\n * @return {String}\n */\nvar fromDecimal = function (value) {\n    return toHex(value);\n};\n\n/**\n * Converts value to it's hex representation\n *\n * @method toHex\n * @param {String|Number|BigNumber}\n * @return {String}\n */\nvar toHex = function (value) {\n    var number = toBigNumber(value);\n    var result = number.toString(16);\n    if (number.lessThan(0)) {\n        return '-0x' + result.substr(1);  \n    }\n    return '0x' + result; \n};\n\n/**\n * Returns value of unit in Wei\n *\n * @method getValueOfUnit\n * @param {String} unit the unit to convert to, default ether\n * @returns {BigNumber} value of the unit (in Wei)\n * @throws error if the unit is not correct:w\n */\nvar getValueOfUnit = function (unit) {\n    unit = unit ? unit.toLowerCase() : 'ether';\n    var unitValue = unitMap[unit];\n    if (unitValue === undefined) {\n        throw new Error('This unit doesn\\'t exists, please use the one of the following units' + JSON.stringify(unitMap, null, 2));\n    }\n    return new BigNumber(unitValue, 10);\n};\n\n/**\n * Takes a number of wei and converts it to any other ether unit.\n *\n * Possible units are:\n * - kwei/ada\n * - mwei/babbage\n * - gwei/shannon\n * - szabo\n * - finney\n * - ether\n * - kether/grand/einstein\n * - mether\n * - gether\n * - tether\n *\n * @method fromWei\n * @param {Number|String} number can be a number, number string or a HEX of a decimal\n * @param {String} unit the unit to convert to, default ether\n * @return {String|Object} When given a BigNumber object it returns one as well, otherwise a number\n*/\nvar fromWei = function(number, unit) {\n    return toBigNumber(number).dividedBy(getValueOfUnit(unit)).toString(10);\n};\n\n/**\n * Takes a number of a unit and converts it to wei.\n *\n * Possible units are:\n * - kwei/ada\n * - mwei/babbage\n * - gwei/shannon\n * - szabo\n * - finney\n * - ether\n * - kether/grand/einstein\n * - mether\n * - gether\n * - tether\n *\n * @method toWei\n * @param {Number|String|BigNumber} number can be a number, number string or a HEX of a decimal\n * @param {String} unit the unit to convert from, default ether\n * @return {String|Object} When given a BigNumber object it returns one as well, otherwise a number\n*/\nvar toWei = function(number, unit) {\n    return toBigNumber(number).times(getValueOfUnit(unit)).toString(10);\n};\n\n/**\n * Takes an input and transforms it into an bignumber\n *\n * @method toBigNumber\n * @param {Number|String|BigNumber} a number, string, HEX string or BigNumber\n * @return {Object} BigNumber\n*/\nvar toBigNumber = function(number) {\n    number = number || 0;\n    if (isBigNumber(number))\n        return number;\n\n    // TODO: check if we need to check for hex here\n    return new BigNumber(number.toString(10), 10);\n};\n\n/**\n * Checks if the given string has proper length\n *\n * @method isAddress\n * @param {String} address the given HEX adress\n * @return {Boolean}\n*/\nvar isAddress = function(address) {\n    return ((address.indexOf('0x') === 0 && address.length === 42) ||\n            (address.indexOf('0x') === -1 && address.length === 40));\n};\n\n/**\n * Returns true if object is BigNumber, otherwise false\n *\n * @method isBigNumber\n * @param {Object}\n * @return {Boolean} \n */\nvar isBigNumber = function (object) {\n    return object instanceof BigNumber ||\n        (object && object.constructor && object.constructor.name === 'BigNumber');\n};\n\n/**\n * Returns true if object is string, otherwise false\n * \n * @method isString\n * @param {Object}\n * @return {Boolean}\n */\nvar isString = function (object) {\n    return typeof object === 'string' ||\n        (object && object.constructor && object.constructor.name === 'String');\n};\n\n/**\n * Returns true if object is function, otherwise false\n *\n * @method isFunction\n * @param {Object}\n * @return {Boolean}\n */\nvar isFunction = function (object) {\n    return typeof object === 'function';\n};\n\nmodule.exports = {\n    findIndex: findIndex,\n    toHex: toHex,\n    toDecimal: toDecimal,\n    fromDecimal: fromDecimal,\n    toAscii: toAscii,\n    fromAscii: fromAscii,\n    extractDisplayName: extractDisplayName,\n    extractTypeName: extractTypeName,\n    filterFunctions: filterFunctions,\n    filterEvents: filterEvents,\n    toWei: toWei,\n    fromWei: fromWei,\n    toBigNumber: toBigNumber,\n    isBigNumber: isBigNumber,\n    isAddress: isAddress,\n    isFunction: isFunction,\n    isString: isString\n};\n\n",
     "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file watches.js\n * @authors:\n *   Marek Kotewicz <marek@ethdev.com>\n * @date 2015\n */\n\n/// @returns an array of objects describing web3.eth.filter api methods\nvar eth = function () {\n    var newFilter = function (args) {\n        return typeof args[0] === 'string' ? 'eth_newBlockFilter' : 'eth_newFilter';\n    };\n\n    return [\n    { name: 'newFilter', call: newFilter },\n    { name: 'uninstallFilter', call: 'eth_uninstallFilter' },\n    { name: 'getLogs', call: 'eth_getFilterLogs' }\n    ];\n};\n\n/// @returns an array of objects describing web3.shh.watch api methods\nvar shh = function () {\n    return [\n    { name: 'newFilter', call: 'shh_newFilter' },\n    { name: 'uninstallFilter', call: 'shh_uninstallFilter' },\n    { name: 'getLogs', call: 'shh_getMessages' }\n    ];\n};\n\nmodule.exports = {\n    eth: eth,\n    shh: shh\n};\n\n",
     "/*\n    This file is part of ethereum.js.\n\n    ethereum.js is free software: you can redistribute it and/or modify\n    it under the terms of the GNU Lesser General Public License as published by\n    the Free Software Foundation, either version 3 of the License, or\n    (at your option) any later version.\n\n    ethereum.js is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Lesser General Public License for more details.\n\n    You should have received a copy of the GNU Lesser General Public License\n    along with ethereum.js.  If not, see <http://www.gnu.org/licenses/>.\n*/\n/** @file web3.js\n * @authors:\n *   Jeffrey Wilcke <jeff@ethdev.com>\n *   Marek Kotewicz <marek@ethdev.com>\n *   Marian Oancea <marian@ethdev.com>\n *   Gav Wood <g@ethdev.com>\n * @date 2014\n */\n\nvar net = require('./net');\nvar eth = require('./eth');\nvar db = require('./db');\nvar shh = require('./shh');\nvar watches = require('./watches');\nvar filter = require('./filter');\nvar utils = require('./utils');\nvar formatters = require('./formatters');\nvar requestManager = require('./requestmanager');\nvar c = require('./config');\n\n/// @returns an array of objects describing web3 api methods\nvar web3Methods = function () {\n    return [\n    { name: 'sha3', call: 'web3_sha3' }\n    ];\n};\n\n/// creates methods in a given object based on method description on input\n/// setups api calls for these methods\nvar setupMethods = function (obj, methods) {\n    methods.forEach(function (method) {\n        // allow for object methods 'myObject.method'\n        var objectMethods = method.name.split('.'),\n            callFunction = function () {\n                /*jshint maxcomplexity:5 */\n                \n                var callback = null,\n                    args = Array.prototype.slice.call(arguments),\n                    call = typeof method.call === 'function' ? method.call(args) : method.call;\n\n                // get the callback if one is available\n                if(typeof args[args.length-1] === 'function'){\n                    callback = args[args.length-1];\n                    Array.prototype.pop.call(args);\n                }\n\n                // add the defaultBlock if not given\n                if(method.addDefaultblock && args.length !== method.addDefaultblock)\n                    Array.prototype.push.call(args, c.ETH_DEFAULTBLOCK);\n\n                // show deprecated warning\n                if(method.newMethod)\n                    console.warn('This method is deprecated please use web3.'+ method.newMethod +'() instead.');\n\n                return web3.manager.send({\n                    method: call,\n                    params: args,\n                    outputFormatter: method.outputFormatter,\n                    inputFormatter: method.inputFormatter\n                }, callback);\n            };\n\n        if(objectMethods.length > 1) {\n            if(!obj[objectMethods[0]])\n                obj[objectMethods[0]] = {};\n\n            obj[objectMethods[0]][objectMethods[1]] = callFunction;\n        \n        } else {\n\n            obj[objectMethods[0]] = callFunction;\n        }\n\n    });\n};\n\n/// creates properties in a given object based on properties description on input\n/// setups api calls for these properties\nvar setupProperties = function (obj, properties) {\n    properties.forEach(function (property) {\n        var proto = {};\n        proto.get = function () {\n\n            // show deprecated warning\n            if(property.newProperty)\n                console.warn('This property is deprecated please use web3.'+ property.newProperty +' instead.');\n\n\n            return web3.manager.send({\n                method: property.getter,\n                outputFormatter: property.outputFormatter\n            });\n        };\n\n        if (property.setter) {\n            proto.set = function (val) {\n\n                // show deprecated warning\n                if(property.newProperty)\n                    console.warn('This property is deprecated please use web3.'+ property.newProperty +' instead.');\n\n                return web3.manager.send({\n                    method: property.setter,\n                    params: [val],\n                    inputFormatter: property.inputFormatter\n                });\n            };\n        }\n\n        proto.enumerable = !property.newProperty;\n        Object.defineProperty(obj, property.name, proto);\n\n    });\n};\n\n/*jshint maxparams:4 */\nvar startPolling = function (method, id, callback, uninstall) {\n    web3.manager.startPolling({\n        method: method, \n        params: [id]\n    }, id,  callback, uninstall); \n};\n/*jshint maxparams:3 */\n\nvar stopPolling = function (id) {\n    web3.manager.stopPolling(id);\n};\n\nvar ethWatch = {\n    startPolling: startPolling.bind(null, 'eth_getFilterchanges'), \n    stopPolling: stopPolling\n};\n\nvar shhWatch = {\n    startPolling: startPolling.bind(null, 'shh_getFilterChanges'), \n    stopPolling: stopPolling\n};\n\n/// setups web3 object, and it's in-browser executed methods\nvar web3 = {\n    manager: requestManager(),\n    providers: {},\n\n    setProvider: function (provider) {\n        web3.manager.setProvider(provider);\n    },\n    \n    /// Should be called to reset state of web3 object\n    /// Resets everything except manager\n    reset: function () {\n        web3.manager.reset(); \n    },\n\n    /// @returns hex string of the input\n    toHex: utils.toHex,\n\n    /// @returns ascii string representation of hex value prefixed with 0x\n    toAscii: utils.toAscii,\n\n    /// @returns hex representation (prefixed by 0x) of ascii string\n    fromAscii: utils.fromAscii,\n\n    /// @returns decimal representaton of hex value prefixed by 0x\n    toDecimal: utils.toDecimal,\n\n    /// @returns hex representation (prefixed by 0x) of decimal value\n    fromDecimal: utils.fromDecimal,\n\n    /// @returns a BigNumber object\n    toBigNumber: utils.toBigNumber,\n\n    toWei: utils.toWei,\n    fromWei: utils.fromWei,\n    isAddress: utils.isAddress,\n\n    // provide network information\n    net: {\n        // peerCount: \n    },\n\n\n    /// eth object prototype\n    eth: {\n        // DEPRECATED\n        contractFromAbi: function (abi) {\n            console.warn('Initiating a contract like this is deprecated please use var MyContract = eth.contract(abi); new MyContract(address); instead.');\n\n            return function(addr) {\n                // Default to address of Config. TODO: rremove prior to genesis.\n                addr = addr || '0xc6d9d2cd449a754c494264e1809c50e34d64562b';\n                var ret = web3.eth.contract(addr, abi);\n                ret.address = addr;\n                return ret;\n            };\n        },\n\n        /// @param filter may be a string, object or event\n        /// @param eventParams is optional, this is an object with optional event eventParams params\n        /// @param options is optional, this is an object with optional event options ('max'...)\n        /*jshint maxparams:4 */\n        filter: function (fil, eventParams, options) {\n\n            // if its event, treat it differently\n            if (fil._isEvent)\n                return fil(eventParams, options);\n\n            return filter(fil, ethWatch, formatters.outputLogFormatter);\n        },\n        // DEPRECATED\n        watch: function (fil, eventParams, options) {\n            console.warn('eth.watch() is deprecated please use eth.filter() instead.');\n            return this.filter(fil, eventParams, options);\n        }\n        /*jshint maxparams:3 */\n    },\n\n    /// db object prototype\n    db: {},\n\n    /// shh object prototype\n    shh: {\n        /// @param filter may be a string, object or event\n        filter: function (fil) {\n            return filter(fil, shhWatch, formatters.outputPostFormatter);\n        },\n        // DEPRECATED\n        watch: function (fil) {\n            console.warn('shh.watch() is deprecated please use shh.filter() instead.');\n            return this.filter(fil);\n        }\n    }\n};\n\n\n// ADD defaultblock\nObject.defineProperty(web3.eth, 'defaultBlock', {\n    get: function () {\n        return c.ETH_DEFAULTBLOCK;\n    },\n    set: function (val) {\n        c.ETH_DEFAULTBLOCK = val;\n        return c.ETH_DEFAULTBLOCK;\n    }\n});\n\n\n/// setups all api methods\nsetupMethods(web3, web3Methods());\nsetupMethods(web3.net, net.methods);\nsetupProperties(web3.net, net.properties);\nsetupMethods(web3.eth, eth.methods);\nsetupProperties(web3.eth, eth.properties);\nsetupMethods(web3.db, db.methods());\nsetupMethods(web3.shh, shh.methods());\nsetupMethods(ethWatch, watches.eth());\nsetupMethods(shhWatch, watches.shh());\n\nmodule.exports = web3;\n\n",
     "var web3 = require('./lib/web3');\nweb3.providers.HttpProvider = require('./lib/httpprovider');\nweb3.providers.QtSyncProvider = require('./lib/qtsync');\nweb3.eth.contract = require('./lib/contract');\nweb3.abi = require('./lib/abi');\n\nmodule.exports = web3;\n"
diff --git a/lib/utils.js b/lib/utils.js
index 29fc156..06c1fa9 100644
--- a/lib/utils.js
+++ b/lib/utils.js
@@ -44,10 +44,13 @@ var unitMap = {
 };
 
 
-/// Finds first index of array element matching pattern
-/// @param array
-/// @param callback pattern
-/// @returns index of element
+/** Finds first index of array element matching pattern
+ *
+ * @method findIndex
+ * @param {Array}
+ * @param {Function} pattern
+ * @returns {Number} index of element
+ */
 var findIndex = function (array, callback) {
     var end = false;
     var i = 0;
@@ -57,7 +60,13 @@ var findIndex = function (array, callback) {
     return end ? i - 1 : -1;
 };
 
-/// @returns ascii string representation of hex value prefixed with 0x
+/** 
+ * Should be called to get sting from it's hex representation
+ *
+ * @method toAscii
+ * @param {String} string in hex
+ * @returns {String} ascii string representation of hex value
+ */
 var toAscii = function(hex) {
 // Find termination
     var str = "";
@@ -77,6 +86,13 @@ var toAscii = function(hex) {
     return str;
 };
     
+/**
+ * Shold be called to get hex representation (prefixed by 0x) of ascii string 
+ *
+ * @method fromAscii
+ * @param {String} string
+ * @returns {String} hex representation of input string
+ */
 var toHexNative = function(str) {
     var hex = "";
     for(var i = 0; i < str.length; i++) {
@@ -87,7 +103,14 @@ var toHexNative = function(str) {
     return hex;
 };
 
-/// @returns hex representation (prefixed by 0x) of ascii string
+/**
+ * Shold be called to get hex representation (prefixed by 0x) of ascii string 
+ *
+ * @method fromAscii
+ * @param {String} string
+ * @param {Number} optional padding
+ * @returns {String} hex representation of input string
+ */
 var fromAscii = function(str, pad) {
     pad = pad === undefined ? 0 : pad;
     var hex = toHexNative(str);
@@ -96,7 +119,13 @@ var fromAscii = function(str, pad) {
     return "0x" + hex;
 };
 
-/// @returns display name for function/event eg. multiply(uint256) -> multiply
+/**
+ * Should be called to get display name of contract function
+ * 
+ * @method extractDisplayName
+ * @param {String} name of function/event
+ * @returns {String} display name for function/event eg. multiply(uint256) -> multiply
+ */
 var extractDisplayName = function (name) {
     var length = name.indexOf('('); 
     return length !== -1 ? name.substr(0, length) : name;
@@ -109,16 +138,26 @@ var extractTypeName = function (name) {
     return length !== -1 ? name.substr(length + 1, name.length - 1 - (length + 1)).replace(' ', '') : "";
 };
 
-/// Filters all function from input abi
-/// @returns abi array with filtered objects of type 'function'
+/**
+ * Filters all functions from input abi
+ *
+ * @method filterFunctions
+ * @param {Array} abi
+ * @returns {Array} abi array with filtered objects of type 'function'
+ */
 var filterFunctions = function (json) {
     return json.filter(function (current) {
         return current.type === 'function'; 
     }); 
 };
 
-/// Filters all events form input abi
-/// @returns abi array with filtered objects of type 'event'
+/**
+ * Filters all events from input abi
+ *
+ * @method filterEvents
+ * @param {Array} abi
+ * @returns {Array} abi array with filtered objects of type 'event'
+ */
 var filterEvents = function (json) {
     return json.filter(function (current) {
         return current.type === 'event';