function highlightButton(MCB) {
	switch(MCB){
		case 1: document.MB01.src='img/cir1A.gif'; break;
		case 2: document.MB02.src='img/cir2A.gif'; break;
		case 3: document.MB03.src='img/cir3A.gif'; break;
		case 4: document.MB04.src='img/cir4A.gif'; break;
		case 5: document.MB05.src='img/cir5A.gif'; break;
		case 6: document.MB06.src='img/cir6A.gif'; break;
		case 7: document.MB07.src='img/cir7A.gif'; break;
		case 8: document.MB08.src='img/cir8A.gif'; break;
		case 9: document.MB09.src='img/cir9A.gif'; break;
		case 10: document.MB10.src='img/cir10A.gif'; break;
		case 11: document.MB11.src='img/cir11A.gif'; break;
		case 12: document.MB12.src='img/cir12A.gif'; break;
		
		case 20: document.MB20.src='img/MatchingButton.gif'; break;
		case 21: if(stateC==3){	document.MB21.src='img/otherresult.gif';
				 }else{ document.MB21.src='img/otherresultOff.gif'} break;
	}
}

function pushButton(MCB) {
	switch(MCB){
		case 1: document.MB01.src='img/cir1B.gif'; break;
		case 2: document.MB02.src='img/cir2B.gif'; break;
		case 3: document.MB03.src='img/cir3B.gif'; break;
		case 4: document.MB04.src='img/cir4B.gif'; break;
		case 5: document.MB05.src='img/cir5B.gif'; break;
		case 6: document.MB06.src='img/cir6B.gif'; break;
		case 7: document.MB07.src='img/cir7B.gif'; break;
		case 8: document.MB08.src='img/cir8B.gif'; break;
		case 9: document.MB09.src='img/cir9B.gif'; break;
		case 10: document.MB10.src='img/cir10B.gif'; break;
		case 11: document.MB11.src='img/cir11B.gif'; break;
		case 12: document.MB12.src='img/cir12B.gif'; break;
		
		case 20: document.MB20.src='img/MatchingButtonOn.gif'; break;			//マッチングボタン
		case 21: if(stateC==3){document.MB21.src='img/otherresultOn.gif';
		 		 }else{ document.MB21.src='img/otherresultOff.gif'} break;			//別の解ボタン
	}
}

function darkenButton(MCB) {
	switch(MCB){
		case 1: document.MB01.src='img/cir1A.gif'; break;
		case 2: document.MB02.src='img/cir2A.gif'; break;
		case 3: document.MB03.src='img/cir3A.gif'; break;
		case 4: document.MB04.src='img/cir4A.gif'; break;
		case 5: document.MB05.src='img/cir5A.gif'; break;
		case 6: document.MB06.src='img/cir6A.gif'; break;
		case 7: document.MB07.src='img/cir7A.gif'; break;
		case 8: document.MB08.src='img/cir8A.gif'; break;
		case 9: document.MB09.src='img/cir9A.gif'; break;
		case 10: document.MB10.src='img/cir10A.gif'; break;
		case 11: document.MB11.src='img/cir11A.gif'; break;
		case 12: document.MB12.src='img/cir12A.gif'; break;
		
		case 20: document.MB20.src='img/MatchingButton.gif'; branch(); break;			//マッチングボタン
		case 21: if(stateC==3){	document.MB21.src='img/otherresult.gif'; otherCross();
		 		 }else{ document.MB21.src='img/otherresultOff.gif'} break;
	}
}

function changeCircuit(MCB){
	switch(MCB){
		case 1: document.MB01.src='img/cir1A.gif'; document.mcir.src='img/mc01.gif'; break;
		case 2: document.MB02.src='img/cir2A.gif'; document.mcir.src='img/mc02.gif'; break;
		case 3: document.MB03.src='img/cir3A.gif'; document.mcir.src='img/mc03.gif'; break;
		case 4: document.MB04.src='img/cir4A.gif'; document.mcir.src='img/mc04.gif'; break;
		case 5: document.MB05.src='img/cir5A.gif'; document.mcir.src='img/mc05.gif'; break;
		case 6: document.MB06.src='img/cir6A.gif'; document.mcir.src='img/mc06.gif'; break;
		case 7: document.MB07.src='img/cir7A.gif'; document.mcir.src='img/mc07.gif'; break;
		case 8: document.MB08.src='img/cir8A.gif'; document.mcir.src='img/mc08.gif'; break;
		case 9: document.MB09.src='img/cir9A.gif'; document.mcir.src='img/mc09.gif'; break;
		case 10: document.MB10.src='img/cir10A.gif'; document.mcir.src='img/mc10.gif'; break;
		case 11: document.MB11.src='img/cir11A.gif'; document.mcir.src='img/mc11.gif'; break;
		case 12: document.MB12.src='img/cir12A.gif'; document.mcir.src='img/mc12.gif'; break;
	}
	mcn=MCB;
	selectC=!selectC;		//解が二つある場合，二度目のクリックで切り替わる
	branch();
}

function clickselect1(){
		document.formRect.F0.select();
}

function clickselect2(){
		document.formRect.F4.select();
}