function calcFirstPayLs(proc) {
	oProc = document.getElementById('first_percents');
	oLvl = document.getElementById('first_lvl');
	if(oProc.value!="0") {
		procInLs = document.getElementById('sum').value/100*oProc.value;
		oLvl.value=Math.round(procInLs*100)/100; //divi cipari aiz komata
		}
	else {
		oLvl.value=0;
		}
	}

function calcFirstPayProc(ls) { //ja ievada ls, lai pamaina proc lauku
	lsInProc = ls / document.getElementById('sum').value * 100;
	document.getElementById('first_percents').value=Math.round(lsInProc);
	}

function validateForm() {
	var sum = document.getElementById('sum').value;
	// if(sum.value=="" || (document.getElementById('first_percents').value==""))	alert("Visiem formas laukiem jābūt aizpildītiem");
	// else if(sum.value<45) alert("Summa nedrīkst būt mazāka par 45Ls");
	// else if(sum.value>7000) alert("Summa nedrīkst būt lielāka par 7000Ls");
	// else return true;
	// return false;
	if ( sum < 45 || sum > 7000 || document.getElementById('first_percents').value == '' ) return false;
	return true;
	}
	
function doCalculations() {
	if ( !validateForm() ) return false;
	oProc = document.getElementById('first_percents');
	if( oProc.value != "0" ) {
		procInLs = document.getElementById('sum').value/100*oProc.value;
		first_lvl = Math.round(procInLs*100)/100; //divi cipari aiz komata
		}
	else {
		first_lvl = 0;
		}	
	
	var sum = document.getElementById('sum').value;
	var period = document.getElementById('period').options[document.getElementById('period').selectedIndex].value
	var first_lvl = reround(first_lvl);
	
	if ( sum >= 1000 ) fixedproc = 22;
	else if ( sum >= 500 ) fixedproc = 23;
	else fixedproc = 25;
	
	atlidziba = sum * 0.015 * 1.18;
	iemaksa_ar_pvn = reround(first_lvl + atlidziba);
	rate = fixedproc/(12*100);
	subsum = sum - first_lvl;
	
	if ( rate ) {
		monthpay = subsum * Math.pow( ( rate+1), period) * rate;
		monthpay = monthpay/( Math.pow( ( rate+1), period) - 1 );
		}
	else {
		monthpay = subsum/period;
		}
	monthpay = reround(monthpay);
	parmaksa = reround( ( monthpay*period - (sum-iemaksa_ar_pvn) ) / sum * 100 );
	
	document.getElementById('out_iemaksalvl').innerHTML = first_lvl;
	document.getElementById('out_ikmenesa').innerHTML = monthpay;
	}
	
function reround(num) {
	return Math.round(num*100)/100;
	}