function popup(url,nome,width,height)
{
  x = (screen.width - width) / 2;
  y = (screen.height - height) / 2;

  window.open(url,nome,'toolbar=no,location=no,directories=no,status=no,scrollbars=no,menubar=no,resizable=no,width='+width+',height='+height+', left='+x+',top='+y);
}

function toggle_menu()
{
  if(document.getElementById("btn_menu").src.indexOf("open") == -1)
  {
    document.getElementById("menu").style.display = "none";
    document.getElementById("btn_menu").src = document.getElementById("btn_menu").src.replace("close","open");
  } else {
    document.getElementById("menu").style.display = "inline";
    document.getElementById("btn_menu").src = document.getElementById("btn_menu").src.replace("open","close");
  }
}

/* Ranking */

function Vmodulos(form)
{
	opcao = form.field13.options[form.field13.selectedIndex].value;
	for(i = 4; i > (opcao - 4); i--)
	{
		document.getElementById("module_"+i).style.display = "none";
	}
	for(i = 1; i <= (opcao - 4); i++)
	{
		document.getElementById("module_"+i).style.display = "inline";
	}
}
function Vhds(form)
{
	opcao = form.field24.options[form.field24.selectedIndex].value;
	for(i = 4; i > (opcao - 13); i--)
	{
		document.getElementById("hds_"+i).style.display = "none";
	}
	for(i = 1; i <= (opcao - 13); i++)
	{
		document.getElementById("hds_"+i).style.display = "inline";
	}
}
function Vrefrigeracao(form)
{
	opcao = form.field31.options[form.field31.selectedIndex].value;
	if(opcao == 22)
	{
		document.getElementById("cooler").style.display = "inline";
		document.getElementById("descricao").style.display = "none";
	}
	else if(opcao > 22)
	{
		document.getElementById("cooler").style.display = "none";
		document.getElementById("descricao").style.display = "inline";
	}
	else
	{
		document.getElementById("cooler").style.display = "none";
		document.getElementById("descricao").style.display = "none";
	}
}