Guessing game after first objects lesson.

guess objects

<script>
	var collected = Math.floor(Math.random() * 1000)
	
	function Range(low, high) 
	{
		this.low = low
		this.high = high
		this.messageOutput = function(myGuess){return myGuess >= (collected + this.low) && myGuess <= (collected + this.high)
		}
	}
		
		one = new Range( - 1000, - 800)	
		two = new Range( - 799, - 400)
		three = new Range( - 399, - 50)
		four = new Range( - 49, - 10)
		five = new Range( - 9, - 1)
		six = new Range( 1, 9)
		seven = new Range( 10, 49)
		eight = new Range( 50, 399)
		nine = new Range( 400, 799)
		ten = new Range( 800, 1000)
			
	var butterfly = function() {
		alert('Oh no, a bunch of butterflies escaped!') 
	}
	var answer = confirm('Would you like to open the box?')
	var done = false
	while (!done)
	{ 
		if(answer) 
		{
			butterfly()
			done = true
		} 
		else 
		{ 
			var sure = confirm('Are you sure')
			if(sure) 
			{
				alert('Your loss, but really...')

			} 
			else 
			{ 
				butterfly() 
				done = true
			}
		} 
	}

	alert('The butterflies need to be put back in the box so they don\'t die')
	alert('There were 1000 in the box, collect as many as you can')
	var guess = prompt('How many do you think you got back in the box?')

	var correct = (guess == collected)
	while(!correct)
	{
		if(one.messageOutput(guess)) 
		{
		guess = prompt('Wow, so far off, it looks like you caught way more than that.')
		}
		if(ten.messageOutput(guess)) 
		{
		guess = prompt('Wow, that\'s a little cocky, you didn\'t catch nearly that many.')
		}
		if(two.messageOutput(guess)) 
		{
		guess = prompt('Give yourself more credit than that.')
		}
		if(three.messageOutput(guess)) 
		{
		guess = prompt('Kinda close, try a little higher.')
		}
		if(four.messageOutput(guess)) 
		{
		guess = prompt('You are pretty close, you caught just a bit more than that.')
		}
		if(five.messageOutput(guess)) 
		{
		guess = prompt('I think it\'s just a few more.')
		}
		if(nine.messageOutput(guess)) 
		{
		guess = prompt('Haha, not nearly. Why don\'t you try a little lower.')
		}
		if(eight.messageOutput(guess)) 
		{
		guess = prompt('You didn\'t catch quite that many.')
		}
		if(seven.messageOutput(guess)) 
		{
		guess = prompt('You are pretty close, you caught just a bit less than that.')
		}
		if(six.messageOutput(guess)) 
		{
		guess = prompt('I think it\'s just a few less.')
		}
		if(guess == collected) 
		{
		correct = true
		}
	}
	alert('Awesome, all the butterflies you caught will be turned into makeup for human babies. When the United Butterflies finds out you will probably be tried for war crimes. Thanks for your allegiance to the Corporation.') 
		

</script>