function populate()
{
	
	var box = document.forms['reference_form'].directory;
	var number = box.options[box.selectedIndex].value;
	if (!number) { number = 'empty' };
	var list = store[number];
	var box2 = document.forms['reference_form'].category;
	box2.options.length = 0;
	for(i=0;i<list.length;i+=2)
	{
		box2.options[i/2] = new Option(list[i],list[i+1]);
	}
	var test = 'empty';
	var list2 = storetwo[test];
	var box3 = document.forms['reference_form'].subcategory;
	box3.options.length = 0;
	for(i=0;i<list2.length;i+=2)
	{
		box3.options[i/2] = new Option(list2[i], list2[i+1]);
	}
}

function populatetwo()
{
	var box = document.forms['reference_form'].category;
	var number = box.options[box.selectedIndex].value;
	if (!number) { number = 'empty' };
	var list = storetwo[number];
	var box2 = document.forms['reference_form'].subcategory;
	box2.options.length = 0;
	for(i=0;i<list.length;i+=2)
	{
		box2.options[i/2] = new Option(list[i],list[i+1]);
	}
}