Variables from first function affected by same name in second function

[LLLLLLL]

If something calls function f1 below, what do you expect to see in the alert?

 

	function f1()
	{
	  for ( i = 0; i < 8; i++ )
	  {
	     other_func();
	     alert( i );
	  }
	}

	function other_func()
	{
	  for ( i = 0; i < 100; i++ )
	  {
	  }
	}

 

The answer is 100, and we've found this to be quite odd. If either of the functions used "var i" instead of just "i" in the loop, you'd get 0, 1, 2,...

 

Why is this, exactly?

[LLLLLLL]

http://stackoverflow.com/questions/6038958/javascript-for-loop-index-variables-become-part-of-global-scope I guess that is the answer. Sigh.