function ImageButton_OnMouseOver(sender){
	sender.src = GetButtonSrc(sender) + "2.png";
}
function ImageButton_OnMouseOut(sender){
	sender.src = GetButtonSrc(sender) + "1.png";
}
function ImageButton_OnMouseDown(sender){
	sender.src = GetButtonSrc(sender) + "3.png";
}
function ImageButton_OnMouseUp(sender){
	sender.src = GetButtonSrc(sender) + "1.png";
}
function GetButtonSrc(sender){
	return sender.src.substring(0, sender.src.length - 5)
}
function ShindanButton_OnClick(sender){
	if(checkForm()){
		doPostBack();
	}else{
		return false;
	}
	return false;
}
function checkForm(){
	var targetObjects = document.all.tags("INPUT");
	var i = 0;
	for(i=0; i!=targetObjects.length; i++){
		if(targetObjects[i].type == "radio"){
			if(targetObjects[i].name.indexOf("Sentakushi_") != -1){
				if(targetObjects[i].name){
					var objectId = targetObjects[i].name;
					if(
						targetObjects[objectId + "_0"].checked ||
						targetObjects[objectId + "_1"].checked ||
						targetObjects[objectId + "_2"].checked ||
						targetObjects[objectId + "_3"].checked
					){
					}else{
						alert('未選択の項目があります。');
						targetObjects[objectId + "_0"].focus();
						return false;
					}
				}
			}
		}
	}
	return true;
}
function doPostBack(){
	var theform = document.all["Form1"];
	theform.submit();
}