// JavaScript Document
calc = function(prodNum) {
	var total = prices[0];
	total += (document.getElementById("doorswitch").value * prices[1]);
	total += (document.getElementById("coltxs").value * prices[2]);
	total += (document.getElementById("petfriendly").value * prices[3]);
	total += (document.getElementById("dualpir").value * prices[4]);
	total += (document.getElementById("vibration").value * prices[5]);
	total += (document.getElementById("panic").value * prices[6]);
	total += (document.getElementById("smoke").value * prices[7]);
	total += (document.getElementById("keypad").value * prices[8]);
	total += (document.getElementById("speech").value * prices[9]);

	document.getElementById("Total_Cost").innerHTML = ""+total+".00";
}