//  Calculate Savings
function calculateSavings() {
    var multipliers = {
        currentpermonth:	2,
        currentperyear:		24,
        halftabpermonth:	1,
        halftabperyear:		12
    };
    var changedId = $(this).attr("id");
    var cost = parseFloat($(this).val());
    if (isNaN(cost)) {
        cost = 0;
    }
    var baseCost = (cost / multipliers[changedId]);
    $("#calculator input").each(function () {
        var id = $(this).attr("id");
        if (multipliers[id] && (id != changedId)) {
            $(this).val((baseCost * multipliers[id]).toFixed(2));
        }
    });
    $("#annualsavings").val((parseFloat($("#currentperyear").val()) - parseFloat($("#halftabperyear").val())).toFixed(2));
}

//  Wrapper to calculate when user hits Enter
function calculateSavingsOnEnter(e) {
	if (e.keyCode == 13) {
		$(this).blur();
	}
}