code: function equals(first, second){
  
  		//If are the same instance, true
  		if (first === second)
  			return true;
  			
  		//If values are equals, return true
  		if (first == second)
  			return true;
  			
  		//If different type, false
  		if (typeof first != typeof second)
  			return false;
  			
  		//If are not objects, check value
  		if (typeof first != "object")
  			return first == second;
  			
  		//For each property on first
  		for (var current in first){
  		
  			//Get property value from each element
  			var firstValue = first[current];
  			var secondValue = second[current];
  			
  			//If current is object, invoke "Equals" on each 
  			//member of the object; otherwise just check values
  			var isEqual = (typeof firstValue === 'object') ? equals(firstValue, secondValue) : firstValue == secondValue;
  			
  			//If not equals, exit
  			if (!isEqual)
  				return false;
  		}
  		
  		//Confirm
  		return true;	
  	}
docs: Verify if first and second element are equals in values