var sChangeFlag = new Array();
function sChange(ChangeID,SubwinID){
	if(sChangeFlag[ChangeID]){
		sChangeFlag[ChangeID] = false;
		document.getElementById(ChangeID).src = '/seminar/images/btn_index_detail.gif';
		document.getElementById(SubwinID).style.display = "none";
	}else{
		sChangeFlag[ChangeID] = true;
		document.getElementById(ChangeID).src = '/seminar/images/btn_index_close.gif';
		document.getElementById(SubwinID).style.display = "block";
	}
}