var bubble;
var cocktail;

var numbers = Array();

function populate(length, min_value, max_value)
{
         for(var input = 0; input < length; input++)
            {
             numbers[input] = Math.round((max_value - min_value) * Math.random() + min_value);
            }
}

function reset()
{
                  bubble.reset();
                  cocktail.reset();
         }

function sort()
{
                  bubble.sort();
                  cocktail.sort();
         }

function repopulate()
{
         populate(25, -100, 100);
         
                  bubble.copy(numbers);
                  cocktail.copy(numbers);
         }

function go()
{
         populate(25, -100, 100);

                  bubble = new sort_array('bubble', numbers.length);
         bubble.copy(numbers);
         bubble.sort = bubble_sort;         
                  cocktail = new sort_array('cocktail', numbers.length);
         cocktail.copy(numbers);
         cocktail.sort = cocktail_sort;         
                  
         document.getElementById('populate').onclick = repopulate;
         document.getElementById('reset').onclick = reset;
         document.getElementById('sort').onclick = sort;
}