/**
 * calcolatore preventivo
 */

function number_format (number, decimals, dec_point, thousands_sep) {
    number = (number + '').replace(/[^0-9+\-Ee.]/g, '');
    var n = !isFinite(+number) ? 0 : +number,
        prec = !isFinite(+decimals) ? 0 : Math.abs(decimals),
        sep = (typeof thousands_sep === 'undefined') ? ',' : thousands_sep,
        dec = (typeof dec_point === 'undefined') ? '.' : dec_point,
        s = '',
        toFixedFix = function (n, prec) {
            var k = Math.pow(10, prec);
            return '' + Math.round(n * k) / k;
        };
    // Fix for IE parseFloat(0.55).toFixed(0) = 0;
    s = (prec ? toFixedFix(n, prec) : '' + Math.round(n)).split('.');
    if (s[0].length > 3) {
        s[0] = s[0].replace(/\B(?=(?:\d{3})+(?!\d))/g, sep);
    }
    if ((s[1] || '').length < prec) {
        s[1] = s[1] || '';
        s[1] += new Array(prec - s[1].length + 1).join('0');
    }
    return s.join(dec);
}


function calcprev(){
	var tot=0;
	var totShow=0;
	tot=elVal('sosta');
	tot=tot+elVal('cellof');
	tot=tot+elVal('sosta_mot');
	tot=tot+elVal('prep_mot');
	tot=tot+elVal('ingr_mot');
	tot=tot+elVal('alag');
	tot=tot+elVal('varo');
	tot=tot+elVal('tacc');
	tot=tot+(elVal('sostm_mt') * elVal('sostm_ms'));
	tot=tot+(elVal('boemt') * elVal('boegg'));
	tot=tot+elVal('boems');
	stringTot= number_format(tot,2,',','.');

	document.getElementById('totale').innerHTML=stringTot;
}

function azzera(){
	document.getElementById('formprev').reset();
	calcprev();
}

function elVal(id){
	var v=document.getElementById(id).value;
	if(v=='') v=0;
	return  parseFloat(v);
}