function MM_findObj(n, d) { //v4.01
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && d.getElementById) x=d.getElementById(n); return x;
}

function MM_showHideLayers() { //v6.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v=='hide')?'hidden':v; }
    obj.visibility=v; }
}

function mySubmit(form)
{
if (form.aductiune[1].checked) form.action='c3b.php';
else form.action='c3a.php';
form.submit();
}

function calcP()
{
	var head = document.c2.cadere_neta.value;
	var q = document.c2.debit_unitar.value;
	document.c2.putere_unitara.value = 0.009*head*q;
}

function calcQ()
{
	var head = document.c2.cadere_neta.value;
	var p = document.c2.putere_unitara.value;
	document.c2.debit_unitar.value = 113*p/head;
}

function calcGHa()
{
	var hw = document.c3.nivel_amonte.value;
	var tw = document.c3.nivel_aval.value;
	document.c3.cadere_bruta.value = hw-tw;
	document.c3.pierderi_totale_cadere.value = (hw-tw)*0.05;
	document.c3.cadere_neta.value = (hw-tw)*0.95
}

function calcNH()
{
	var gh = document.c3.cadere_bruta.value;
	var thl = document.c3.pierderi_totale_cadere.value;
	document.c3.cadere_neta.value = gh-thl;
}

function calcGHb()
{
	var hw = document.c3.nivel_amonte.value;
	var tw = document.c3.nivel_aval.value;
	document.c3.cadere_bruta.value = hw-tw;
	document.c3.pierderi_totale_cadere.value = (hw-tw)*0.2;
	document.c3.cadere_neta.value = (hw-tw)*0.8
}
function calcQP()
{
	var qu = document.c3.debit_unitar.value;
	var pu = document.c3.putere_unitara.value;
	var nu = document.c3.numar_unitati.value;
	document.c3.debit_total_nominal.value = qu*nu;
	document.c3.putere_totala_nominala.value = pu*nu;
}