function CurrencyFormatted(amount)
{
	var i = parseFloat(amount);
	if(isNaN(i)) { i = 0.00; }
	var minus = '';
	if(i < 0) { minus = '-'; }
	i = Math.abs(i);
	i = parseInt((i + .005) * 100);
	i = i / 100;
	s = new String(i);
	if(s.indexOf('.') < 0) { s += '.00'; }
	if(s.indexOf('.') == (s.length - 2)) { s += '0'; }
	s = minus + s;
	return s;
}

function CalcCost()
{
    var y=document.getElementById("nopages").value;
    var x=0;
    
    if (y>0)
    {
       	x=175+((y-1)*75);
    }
    document.getElementById("totalcal").value="$"+CurrencyFormatted(x);
}