collatz.js

	n = prompt("Enter a number greater than 1: ");
		var counter = 0
	function collatz(n, counter) {
	
		document.display.myCounter.value=counter;
		 	
		if (n>1) {

			if (n%2) {
				t = 3 * n + 1;
				counter++;
				collatz(t, counter);
			} else{
				t = n/2;
				counter++;
				collatz(t, counter);
			};

		};	
		return counter;
		
	}
	
	
 
collatz(n, counter);