function process_poll()
{

	var rad_val="no_value";
	
	for (var i=0; i < document.submit_poll.Vote.length; i++)
	{
		if (document.submit_poll.Vote[i].checked)
		  {
			  rad_val = document.submit_poll.Vote[i].value;
		  }
	}

	if(rad_val == "no_value")
	{
		alert("Please sleect an option before vote !");
	}else{
		document.submit_poll.submit();
	}
}