// Commute Cost Calculator
function CalcCosts() {
	try {
		document.getElementById("cm").value = "error";

		document.getElementById("cy").value = "error";

		var a, b, c, d, e, f, g;
		a = Number(document.getElementById("qa").value);
		b = Number(document.getElementById("qb").value);
		c = Number(document.getElementById("qc").value);
		d = Number(document.getElementById("qd").value);
		e = Number(document.getElementById("qe").value);
		f = Number(document.getElementById("qf").value);
		g = Number(document.getElementById("qg").value);

		document.getElementById("cm").value = Math.round(((a*b/c*d) + (a*b*e) + (b*f) + g)*100)/100;

		document.getElementById("cy").value = Math.round(document.getElementById("cm").value * 12 * 100)/100; 

		if (document.getElementById("cm").value == "NaN") document.getElementById("cm").value = "";
		if (document.getElementById("cy").value == "NaN") document.getElementById("cy").value = "";

	} catch(e) {
	
		document.getElementById("cm").value = "";

		document.getElementById("cy").value = "";
	}
	
}