function calculate(what) {
	document.getElementById('result').style.display = "none";
	for (i=1,answer=0;i<16;i++)    
    answer += (what.elements['Checkbox' + i].checked)&(what.elements['Checkbox' + i].value-0);
		if(answer>=12){
				document.getElementById('showMe').style.display = "block";
				document.getElementById('startOver').style.display = "block";
				document.getElementById('plus').style.display = "block";
				document.getElementById('minus').style.display = "none";
			} else {
				document.getElementById('showMe').style.display = "block";
				document.getElementById('startOver').style.display = "block";
				document.getElementById('plus').style.display = "none";
				document.getElementById('minus').style.display = "block";		
		}
};


function showResults() {
	if(typeof(window['i'])=="undefined" || i==0){
		document.getElementById('minus').style.display = "block";
	} 
	document.forms[0].reset();
	document.getElementById('startOver').style.display = "none";	
	document.getElementById('result').style.display = "block";
	document.getElementById('questions').style.display = "none";
	document.getElementById('showMe').style.display = "none";
	document.getElementById('intro').style.display = "none";
//	document.getElementById('minus').style.display = "block";	
	i=0;

};

function clearResults() {
	document.forms[0].reset();
	document.getElementById('result').style.display = "none";
	document.getElementById('questions').style.display = "block";
	document.getElementById('showMe').style.display = "block";
	document.getElementById('startOver').style.display = "block";
	document.getElementById('intro').style.display = "block";
	i=0;
};