// for submenu
var refer=true;
function showSubmenu()
{
	if (refer)
	{
		document.all.contents.style.visibility="visible";
		refer=false;
	}
	else
	{
		document.all.contents.style.visibility="hidden";
		refer=true;
	}
}

function submitpost()
{
  submitok='true'
  if (document.form1.name.value.length<1)
  {
    alert('You must enter a name')
    document.form1.name.focus()
    submitok='false'
  }
  if (submitok=='true' && document.form1.subject.value.length<1)
  {
    alert('You must enter a subject')
    document.form1.subject.focus()
    submitok='false'
  }
  if (submitok=='true')
  {
    document.form1.submit()
  }
}

function init()
{
	document.form1.name.focus()
}

function callWin (url)
{
	window.open (url, "", "width=600, height=500");
}

count=0;
function changeImg()
{
	count++;
	count %=4;
	document.Steps.src="pictures/EMG/step" + count + ".jpg";
}