function calc(x) {
	with (x) {

		blocks2.value = blocks.value;
		kWh.value = parseFloat(blocks.value * 1200);
		coal.value = parseInt(blocks.value * .81 * 1200);
		CO2.value = parseInt(blocks.value * .567 * 1200 * 3.67);
		SO2.value = parseInt(6.5 * kWh.value / 1000);
		NOx.value = parseInt(2.6 * kWh.value / 1000);
		trees.value = parseInt(CO2.value / 13);
		miles.value = parseInt(10500 * 1200 * blocks.value / 4145);
		days.value = parseInt(miles.value / 15000 * 365);
	}
}