var options = $.extend({}, Modal.DEFAULTS, $this.data(), typeof option == 'object' && option)

for (var key in validation_messages) {
   if (validation_messages.hasOwnProperty(key)) {
       var obj = validation_messages[key];
        for (var prop in obj) {
          // important check that this is objects own property
          // not from prototype prop inherited
          if(obj.hasOwnProperty(prop)){
            alert(prop + " = " + obj[prop]);
          }
       }
    }
}

var validation_messages = {
    "key_1": {
        "your_name": "jimmy",
        "your_msg": "hello world"
    },
    "key_2": {
        "your_name": "billy",
        "your_msg": "foo equals bar"
    }
}

var validation_messages = {
    "key_1": {
        "your_name": "jimmy",
        "your_msg": "hello world"
    },
    "key_2": {
      "your_name": {
        "first_name" : "Ratan",
        "secound_name" : "Tata",
      },
        "your_msg": "foo equals bar"
    }
}

"your_name = jimmy"
"your_msg = hello world"
"your_name = [object Object]"
"your_msg = foo equals bar"

var validation_messages = {
    "key_1": {
        "your_name": "jimmy",
        "your_msg": "hello world"
    },
    "key_2": {
      "your_name": {
        "first_name" : "Ratan",
        "secound_name" : "Tata",
      },
        "your_msg": "foo equals bar"
    }
}


for (var key in validation_messages) {
   if (validation_messages.hasOwnProperty(key)) {
       var obj = validation_messages[key];
        for (var prop in obj) {
          // important check that this is objects own property
          // not from prototype prop inherited

          if(typeof prop != 'string') {
            for(var obj_key in prop) {
              var obj = prop[obj_key];
               for (var prop in obj){
                  console.log(prop + " = " + obj[prop]);
               }
            }
          }

          if(obj.hasOwnProperty(prop)){
            console.log(prop + " = " + obj[prop]);
          }
       }
    }
}