// JavaScript Document
<!-- Begin
function calcwaterboiler(form) {
var power =  eval(form.power.value);
var users = eval(form.users.value);
var cupsize = eval(form.cupsize.value);
form.capacity.value = Math.round(users*cupsize*10)/10;
form.flow.value = Math.round((power*28/3)/cupsize);
}
// End -->

<!-- Begin
function calcradiantpower(form) {
var width = eval(form.width.value);
var length = eval(form.length.value);
var intensity = eval(form.intensity.value);
var conversion = eval(form.conversion.value)
var result = width*length*intensity/conversion/1000;
form.power.value = Math.round(result*10)/10;
}
// End -->

<!-- Begin
function calcconvectionpower(form) {
var width = eval(form.width.value);
var length = eval(form.length.value);
var height = eval(form.height.value);
var intemp = eval(form.intemp.value);
var outtemp = eval(form.outtemp.value);
var conversion = eval(form.conversion.value)
var insulation = eval(form.insulation.value);
var result =
(width*length*height*insulation*1.2*(intemp-outtemp)/conversion)/1000;
form.power.value = Math.round(result*10)/10;
}
// End -->

<!-- Begin
function Calcsfkit(form) {
var storagecapacity = eval(form.capacity.value);
var waterpressure = eval(form.pressure.value);
var pipelength = eval(form.length.value);
form.pipework.value = storagecapacity;
form.prv.value = waterpressure;
}
// End -->

<!-- Begin
function calcinstantflow(form) {
var temprise = eval(form.temprise.value);
var power =  eval(form.power.value);
var result = power*14.3/temprise;
form.flow.value = Math.round(result*10)/10;
}
// End -->


<!-- Begin
function calcreheattimes(form) {
var temprise = eval(form.temprise.value);
var volume = eval(form.volume.value);
var power =  eval(form.power.value);
var result = temprise*volume/(power*14.3);
form.time.value = Math.round(result);
}
// End -->