Additional work on the JS stuff to make it more similar to Solidity.

lib/contract.js

@@ -75,6 +75,15 @@ var contract = function (address, desc) {
         return result;
     };
 
+    result._options = {};
+    ['gas', 'gasPrice', 'value', 'from'].forEach(function(p) {
+        result[p] = function (v) {
+            result._options[p] = v;
+            return result;
+        };
+    });
+
+
     desc.forEach(function (method) {
 
         var displayName = abi.methodDisplayName(method.name);