function displayBlock1(Num){
	for(var i=1; i <= 7; i++) {
		var divObj = document.getElementById("number"+i+"_detail");
		if(i == Num){
			divObj.style.display = "block";
			divObj.src = "images/number"+i+"_on.gif";
		}else{
			divObj.style.display = "none";
			divObj.src = "images/number"+i+"_off.gif";
		}
	}
}


function displayBlock2(Num){
	for(var i=8; i <= 10; i++) {
		var divObj = document.getElementById("number"+i+"_detail");
		if(i == Num){
			divObj.style.display = "block";
			divObj.src = "images/number"+i+"_on.gif";
		}else{
			divObj.style.display = "none";
			divObj.src = "images/number"+i+"_off.gif";
		}
	}
}