// Javascript validation

function view_poll()
{
	
	document.getElementById('view').style.display = "block";
	document.getElementById('vote').style.display = "none";
	document.getElementById('poll_vote').style.display = "none";
	document.getElementById('poll_option').style.display = "block";
	document.getElementById('poll_view').style.display = "none";
}
function vote_poll()
{
	
	
	
	document.getElementById('view').style.display = "none";
	document.getElementById('poll_option').style.display = "block";
}

function option_poll()
{
	
	document.getElementById('poll_option').style.display = "none";
	document.getElementById('vote').style.display = "block";
	document.getElementById('poll_vote').style.display = "block";
	document.getElementById('view').style.display = "none";
	
}	

function valid_radio(thisform)
{
	
myOption = -1;
for (i=thisform.poll.length-1; i > -1; i--)
{
	if (thisform.poll[i].checked)
	{
	myOption = i; i = -1;
	}
}
if (myOption == -1)
{
alert("You must select at least one answer.");
return false;
}
}