function checkSheet( formId )
{
	var resultImg = document.getElementById('checkresult');
	var f = document.getElementById(formId);
	var inputs = f.getElementsByTagName('input');
	var total = 0;
	var total_checked = 0;
	var percentage = 0.0;
	var urla = '';

	for (var i=0; i < inputs.length; i++) {
		if(inputs[i].type=="checkbox") {
			if(inputs[i].checked == true) {
				total_checked++;
			}
			total++;
		}
		
	}
	percentage = Math.round((parseInt(total_checked)/parseFloat(total))*100);
	//alert( percentage+" %" );
	switch(true) {
		case (total_checked >= 23) : 
			urla = '10';
			break;
		case (total_checked >= 16) : 
			urla = '25';
			break;
		case (total_checked >= 10) : 
			urla = '50';
			break;
		case (total_checked >= 5) : 
			urla = '80';
			break;
		case (total_checked >= 2) : 
			urla = '100';
			break;
		case (total_checked <= 1) : 
			urla = '120';
			break;
	}

	location.href = 'result.html#A' + urla;
};