Radio button clicker for http://www.32x8.com/circuits6

radioclicker.js

// run this in the k-map solver site in http://www.32x8.com/circuits6 to choose radio buttons

index = 3;

tags = document.getElementsByTagName('input');
radio = {};

// find radio tags
for (i in tags) {
	if (tags[i].type == 'radio' && tags[i].name.substring(0, 2) == 'in') {
		value = parseInt(tags[i].name.substring(2));
		if (!radio[value]) radio[value] = {};
		radio[value][tags[i].id] = tags[i];
	}
}

// put conversion booleans, 'x' for don't care

alufn = [
	'x',    'x',    'x',    'x',    'x',    'x',    'x',    'x',
	'x',    'x',    'x',    'x',    'x',    'x',    'x',    'x',
	'x',    'x',    'x',    'x',    'x',    'x',    'x',    'x',
	0b000000, 0b000000, 'x',    'x',    'x',    'x',    'x',    'x',
	0b000000, 0b000001, 'x',    'x',    0b110011, 0b110101, 0b110111, 'x',
	0b011000, 0b011110, 0b010110, 'x',    0b100000, 0b100001, 0b100011, 'x',
	0b000000, 0b000001, 'x',    'x',    0b110011, 0b110101, 0b110111, 'x',
	0b011000, 0b011110, 0b010110, 'x',    0b100000, 0b100001, 0b100011, 'x',
]

for (key in radio) {
	if (alufn[key] == 'x')
		radio[key]['dc'].checked = true;
	else if (alufn[key] & (1 << index))
		radio[key]['rt'].checked = true;
	else
		radio[key]['left'].checked = true;
}