function setScore()
{
	var totScore = 0;
	for(i=0;i<document.getElementsByTagName("input").length;i++)
	{
		if(document.getElementsByTagName("input")[i].type == "checkbox")
		{
			if(document.getElementsByTagName("input")[i].checked == true)
				totScore++
		}
	}
	document.getElementById('sp_tot').innerHTML = totScore
}