if (document.images) {
	var point_off = new Image(); point_off.src = 'http://www.yasojima.co.jp/zairyo/img/btn_saiyo_point.gif';
	var point_on  = new Image(); point_on.src  = 'http://www.yasojima.co.jp/zairyo/img/btn_saiyo_point_o.gif';
	var keyword_off = new Image(); keyword_off.src = 'http://www.yasojima.co.jp/zairyo/img/btn_saiyo_keyword.gif';
	var keyword_on  = new Image(); keyword_on.src  = 'http://www.yasojima.co.jp/zairyo/img/btn_saiyo_keyword_o.gif';
	var freeword_off = new Image(); freeword_off.src = 'http://www.yasojima.co.jp/zairyo/img/btn_saiyo_freeword.gif';
	var freeword_on  = new Image(); freeword_on.src  = 'http://www.yasojima.co.jp/zairyo/img/btn_saiyo_freeword_o.gif';
}

function pointList(targetID,etcID1,etcID2) { 
        if( document.getElementById(targetID)) { 
                if( document.getElementById(targetID).style.display == "none" | document.getElementById(targetID).style.display == "") {
                    document.getElementById(targetID).style.display = "block";
										document.getElementById(etcID1).style.display = "none";
										document.getElementById(etcID2).style.display = "none";
										document.images["point_img"].src = point_on.src;
										document.images["keyword_img"].src = keyword_off.src;
										document.images["freeword_img"].src = freeword_off.src;
                }
        }
}


function keywordList(targetID,etcID1,etcID2) {
        if( document.getElementById(targetID)) {
                if( document.getElementById(targetID).style.display == "none" | document.getElementById(targetID).style.display == "") {
                    document.getElementById(targetID).style.display = "block";
										document.getElementById(etcID1).style.display = "none";
										document.getElementById(etcID2).style.display = "none";
										document.images["point_img"].src = point_off.src;
										document.images["keyword_img"].src = keyword_on.src;
										document.images["freeword_img"].src = freeword_off.src;
                }
        }
}


function freewordList(targetID,etcID1,etcID2) {
        if( document.getElementById(targetID)) {
                if( document.getElementById(targetID).style.display == "none" | document.getElementById(targetID).style.display == "") {
                    document.getElementById(targetID).style.display = "block";
										document.getElementById(etcID1).style.display = "none";
										document.getElementById(etcID2).style.display = "none";
										document.images["point_img"].src = point_off.src;
										document.images["keyword_img"].src = keyword_off.src;
										document.images["freeword_img"].src = freeword_on.src;
                }
        }
}