function f_check(){

	var fcpflag1 = 0;
	var fcpflag2 = 0;
	var fcpflag3 = 0;
	var fcpflag4 = 0;
	var fcpflag5 = 0;
	var fcpflag6 = 0;
	var fcpflag7 = 0;
	var fcpflag8 = 0;
	var fcpflag9 = 0;
	var fcpflag10 = 0;

	// --------------------------------------------------------------------------------------
	if(!(document.getElementById('business1').checked
	|| document.getElementById('business2').checked
	|| document.getElementById('business3').checked
	|| document.getElementById('business4').checked)){
	fcpflag1 = 1;
	document.fcp1.src = "../images/mailform/ng.gif";
	}

	if(document.getElementById('business1').checked
	|| document.getElementById('business2').checked
	|| document.getElementById('business3').checked
	|| document.getElementById('business4').checked){
	document.fcp1.src = "../images/mailform/ok.gif";
	}
	// --------------------------------------------------------------------------------------
	if(!(document.mailf.unei[0].checked
	|| document.mailf.unei[1].checked
	|| document.mailf.unei[2].checked)){
	fcpflag2 = 1;
	document.fcp2.src = "../images/mailform/ng.gif";
	}

	if(document.mailf.unei[0].checked
	|| document.mailf.unei[1].checked
	|| document.mailf.unei[2].checked){
	document.fcp2.src = "../images/mailform/ok.gif";
	}
	// --------------------------------------------------------------------------------------
	if(document.getElementById('mise').value==''){
	fcpflag3 = 1;
	document.fcp3.src = "../images/mailform/ng.gif";
	}

	if(!(document.getElementById('mise').value=='')){
	document.fcp3.src = "../images/mailform/ok.gif";
	}
	// --------------------------------------------------------------------------------------
	if(document.getElementById('kana').value==''){
	fcpflag4 = 1;
	document.fcp4.src = "../images/mailform/ng.gif";
	}

	if(!(document.getElementById('kana').value=='')){
	document.fcp4.src = "../images/mailform/ok.gif";
	}
	// --------------------------------------------------------------------------------------
	if(document.getElementById('name').value==''){
	fcpflag5 = 1;
	document.fcp5.src = "../images/mailform/ng.gif";
	}

	if(!(document.getElementById('name').value=='')){
	document.fcp5.src = "../images/mailform/ok.gif";
	}
	// --------------------------------------------------------------------------------------
	if(document.mailf.select.options[document.mailf.select.selectedIndex].value=='未選択'){
	fcpflag6 = 1;
	document.fcp6.src = "../images/mailform/ng.gif";
	}

	if(!(document.mailf.select.options[document.mailf.select.selectedIndex].value=='未選択')){
	document.fcp6.src = "../images/mailform/ok.gif";
	}
	// --------------------------------------------------------------------------------------
	if(document.getElementById('address').value==''){
	fcpflag7 = 1;
	document.fcp7.src = "../images/mailform/ng.gif";
	}

	if(!(document.getElementById('address').value=='')){
	document.fcp7.src = "../images/mailform/ok.gif";
	}
	// --------------------------------------------------------------------------------------
	if(document.getElementById('tel').value==''){
	fcpflag8 = 1;
	document.fcp8.src = "../images/mailform/ng.gif";
	}

	if(!(document.getElementById('tel').value=='')){
	document.fcp8.src = "../images/mailform/ok.gif";
	}
	// --------------------------------------------------------------------------------------
	if(document.getElementById('mailcc').value==''){
	fcpflag9 = 1;
	document.fcp9.src = "../images/mailform/ng.gif";
	}

	if(!(document.getElementById('mailcc').value=='')){
	document.fcp9.src = "../images/mailform/ok.gif";
	}
	// --------------------------------------------------------------------------------------
	if(!(document.mailf.renraku[0].checked || document.mailf.renraku[1].checked)){
	fcpflag10 = 1;
	document.fcp10.src = "../images/mailform/ng.gif";
	}
	if(document.mailf.renraku[0].checked || document.mailf.renraku[1].checked){
	document.fcp10.src = "../images/mailform/ok.gif";
	}
	// --------------------------------------------------------------------------------------
	if(fcpflag1 == 1
	|| fcpflag2 == 1
	|| fcpflag3 == 1
	|| fcpflag4 == 1
	|| fcpflag5 == 1
	|| fcpflag6 == 1
	|| fcpflag7 == 1
	|| fcpflag8 == 1
	|| fcpflag9 == 1
	|| fcpflag10 == 1){
	alert("未記入の項目があります。お手数ではございますが、必須項目を全て入力してから、再度送信ボタンをクリックしてください");
	return false;
	}

	if(confirm("それでは送信します")){
		document.mailf.submit();
		return true;
	}else{
		return false;
	}
}