michael@0: eval("var OBJ = new MyObject(true); OBJ.valueOf()") 
michael@0: function MyObject( value ) {
michael@0:   this.valueOf = new Function( "return this.value" );
michael@0: }
michael@0: eval("\
michael@0: var VERSION = \"ECMA_1\";\
michael@0: var DATE1 = new Date();\
michael@0: var MYOB1 = new MyObject( DATE1 );\
michael@0: function MyProtoValuelessObject() {}\
michael@0: function Function() {\
michael@0:   __proto__[MyProtoValuelessObject] = VERSION;\
michael@0: }");