function checknum(number)
{
	var tmp = number.value;
	if(isNaN(tmp))
	{
		tmp = tmp.substring(0,(tmp.length-1));
		number.value = tmp;
	}
	if(number.value<0)
	{
		number.value = 0 - tmp;
	}
}

function formatnumber(val)
{
	var number = val;

        if(val>10000000000)
	{
		var textt = "";
		number = Math.round(number/1000000000*1000)/1000 +'';
		var decimalarray = number.split(".");
		number = decimalarray[0];
	}
	number = number +'';
        var i = number.length%3;
        var formattednumber = number.substring(0,i);
        while (i < number.length)
        {
                if(i){formattednumber += ",";}
                formattednumber += number.substring(i,i+3);
                i = i + 3;
        }
        if(val>10000000000)
	{
                if(decimalarray[1]==null)
		{
			return formattednumber + "B";
		}
		else
		{
			return formattednumber + "." + decimalarray[1] + "B";
		}
        }
	else
	{
		return formattednumber;
	}
}

function nw(val)
{
	var nw = new Array();
	nw['troops'] = 0.5;
	nw['jets'] = 0.6;
	nw['turrets'] = 0.6;
	nw['tanks'] = 2;
	return nw[val];
}

function update(val)
{
	var t = document.resell;
	var miltype = ['troops','jets','turrets','tanks'];
	var i = 0;
	while(i<4)
	{
	        document.getElementById('prnw' + miltype[i]).innerHTML = "$" + formatnumber(Math.round(t['pr' + miltype[i]].value/nw(miltype[i])));
	        document.getElementById('punw' + miltype[i]).innerHTML = "$" + formatnumber(Math.round(t['pu' + miltype[i]].value/nw(miltype[i])/t['government'].value));
	        document.getElementById('prof' + miltype[i]).innerHTML = "$" + formatnumber(Math.round(t['pu' + miltype[i]].value*t['government'].value-t['pr' + miltype[i]].value));
	        document.getElementById('perprof' + miltype[i]).innerHTML = formatnumber(Math.round((t['pu' + miltype[i]].value*t['government'].value-t['pr' + miltype[i]].value)/t['pr' + miltype[i]].value*100));
		i++;
	}
        var hours=[0,6,12,18,24];
	var regen=[3,2.5,2.5,1];
	i = 0;
	var ii;
	var turns;
	while(i<5)
	{
		if(hours[i]==0){turns = 1;} else {turns = Math.round(hours[i]*t['server'].value/24);}
		ii = 0;
		while(ii<4)
		{
			document.getElementById(hours[i] + miltype[ii] + 'privateunits').innerHTML = formatnumber(Math.round(turns*regen[ii]*t['land'].value));
			document.getElementById(hours[i] + miltype[ii] + 'privatecost').innerHTML = "$" + formatnumber(Math.round(turns*regen[ii]*t['land'].value*t['pr' + miltype[ii]].value));
			document.getElementById(hours[i] + miltype[ii] + 'privatenetworth').innerHTML = "$" + formatnumber(Math.round(turns*regen[ii]*t['land'].value*nw(miltype[ii])));
			document.getElementById(hours[i] + miltype[ii] + 'publicunits').innerHTML = formatnumber(Math.round( ( turns*regen[ii]*t['land'].value*t['pr' + miltype[ii]].value ) / t['government'].value / t['pu' + miltype[ii]].value));
			document.getElementById(hours[i] + miltype[ii] + 'publiccost').innerHTML = "$" + formatnumber(Math.round((turns*regen[ii]*t['land'].value*t['pr' + miltype[ii]].value)/t['government'].value));
			document.getElementById(hours[i] + miltype[ii] + 'publicnetworth').innerHTML = "$" + formatnumber(Math.round( ( turns*regen[ii]*t['land'].value*t['pr' + miltype[ii]].value ) / t['government'].value / t['pu' + miltype[ii]].value *nw(miltype[ii])));
			ii++;
		}
		i++;
	}
}