// JavaScript Document
function disable(){
/* 無効化する前に、入力値を0にする */
document.getElementById("big").value="0";
document.getElementById("mid").value="0";
document.getElementById("sml").value="0";
document.getElementById("ht").value="0";

document.getElementById("radio").checked =  false;
document.getElementById("radio2").checked =  false;
document.getElementById("radio3").checked =  false;
document.getElementById("radio4").checked =  false;

//無効にする
document.getElementById("big").disabled = true;
document.getElementById("mid").disabled = true;
document.getElementById("sml").disabled = true;
document.getElementById("ht").disabled = false;
document.getElementById("radio").disabled =  true;
document.getElementById("radio2").disabled =  true;
document.getElementById("radio3").disabled =  true;
document.getElementById("radio4").disabled =  true;


}
function enable(){
document.getElementById("ht").value="0";
//無効にする
document.getElementById("big").disabled = false;
document.getElementById("mid").disabled = false;
document.getElementById("sml").disabled = false;
document.getElementById("ht").disabled = true;


}
function enable1(){
	var no1  = document.getElementById("big").selectedIndex;
	var no2  = document.getElementById("mid").selectedIndex;
	var no3  = document.getElementById("sml").selectedIndex;
	
if(no1 !=0 || no2 != 0 || no3 != 0){	
document.getElementById("radio").disabled =  false;
document.getElementById("radio2").disabled =  false;
document.getElementById("radio3").disabled =  false;
document.getElementById("radio4").disabled =  false;

}
else{
document.getElementById("radio").disabled =  true;
document.getElementById("radio2").disabled =  true;
document.getElementById("radio3").disabled =  true;
document.getElementById("radio4").disabled =  true;
document.getElementById("radio").checked =  false;
document.getElementById("radio2").checked =  false;
document.getElementById("radio3").checked =  false;
document.getElementById("radio4").checked =  false;
	}
	
	




	
	}