// JavaScript Document

// scambiatori aria-acqua
function calcola_acqua_tot1 () {
	var Te = document.getElementById('c1a2').value;
	var Ti = document.getElementById('c2a2').value;
	var result = parseFloat(Te) - parseFloat(Ti);
	document.getElementById('tot1a2').value = result;
}
function calcola_acqua_tot2() {
	var DeltaT = document.getElementById('tot1a2').value;
	var K = document.getElementById('c3a2').value.replace(/,/, ".");
	var Sr = document.getElementById('c4a2').value;
	var result = parseFloat(DeltaT) * parseFloat(K) * parseFloat(Sr);
	document.getElementById('tot2a2').value = result;
}
function calcola_acqua_tot3() {
	var Pr = document.getElementById('tot2a2').value.replace(/,/, ".");
	var Pd = document.getElementById('c5a2').value.replace(/,/, ".");
	var result = parseFloat(Pr) + parseFloat(Pd);
	document.getElementById('tot3a2').value = result;
}

// scambiatori aria-aria
function calcola_aria_tot1() {
	var Te = document.getElementById('c1b2').value;
	var Ti = document.getElementById('c2b2').value;
	var result = parseFloat(Ti) - parseFloat(Te);
	document.getElementById('tot1b2').value = result;
}
function calcola_aria_tot2() {
	var DeltaTa = document.getElementById('tot1b2').value;
	var K = document.getElementById('c3b2').value.replace(/,/, ".");
	var Sr = document.getElementById('c4b2').value;
	var result = parseFloat(DeltaTa) * parseFloat(K) * parseFloat(Sr);
	document.getElementById('tot2b2').value = result;
	
}
function calcola_aria_tot3() {
	var DeltaTa = document.getElementById('tot1b2').value;
	var Pd = document.getElementById('c5b2').value;
	var Pr = document.getElementById('tot2b2').value;
	var result =  ( parseFloat(Pd) - parseFloat(Pr) ) / parseFloat(DeltaTa);
	document.getElementById('tot3b2').value = result;
}

// ventilatori filtro
function calcola_ventil_tot1() {
	var Te = document.getElementById('c1c2').value;
	var Ti = document.getElementById('c2c2').value;
	var result = Math.abs( parseFloat(Te) - parseFloat(Ti) );
	document.getElementById('tot1c2').value = result;
}
function calcola_ventil_tot2() {
	var DeltaTa = document.getElementById('tot1c2').value;
	var Pd = document.getElementById('c3c2').value;		
	var result =  parseFloat(Pd) / ( parseFloat(DeltaTa) * 0.3 ); 
	document.getElementById('tot2c2').value = result;
}

// riscaldatori anticondensa
function calcola_riscal_tot1() {
	var Te = document.getElementById('c1d2').value;
	var Ti = document.getElementById('c2d2').value;
	var result = parseFloat(Ti) - parseFloat(Te);
	document.getElementById('tot1d2').value = result;	
}
function calcola_riscal_tot2() {
	var DeltaTa = document.getElementById('tot1d2').value;
	var K = document.getElementById('c3d2').value.replace(/,/, ".");
	var Sr = document.getElementById('c4d2').value;
	var result = parseFloat(DeltaTa) * parseFloat(K) * parseFloat(Sr);
	document.getElementById('tot2d2').value = result;
	
}