<!--Copyright(C) by Takahito Yamada All rights reserved. -->
<!--
//

//換算
function kanshi() {
	mae = document.getElementById("kans").before.value;
	ato = document.getElementById("kans").after.value;

	x = ato - mae;

{
	if (x<0) y=x+61;
		else {
		y= x;}
}

	document.getElementById("kans").kansan.value = y;
}

function sakujitsu() {
	mae = document.getElementById("saku").before.value;
	ato = document.getElementById("saku").after.value;


	x = ato - mae;

{
	if (x<0) y=x+61;
		else {
		y= x+1;}
}

{
	if (y>30) z=0;
		else {
		z= y;}
}

	document.getElementById("saku").kansan.value = z;

}

//-->