function menuchange(flag,position){

icon=new Array(10)
icon["01"]=new Image();icon["01"].src="images/master_gp_gaiyou.gif";
icon["02"]=new Image();icon["02"].src="images/master_gp_gaiyou_on.gif";
icon["03"]=new Image();icon["03"].src="images/master_gp_theme.gif";
icon["04"]=new Image();icon["04"].src="images/master_gp_theme_on.gif";
icon["05"]=new Image();icon["05"].src="images/master_gp_oubo.gif";
icon["06"]=new Image();icon["06"].src="images/master_gp_oubo_on.gif";
icon["07"]=new Image();icon["07"].src="images/master_gp_uketsuke.gif";
icon["08"]=new Image();icon["08"].src="images/master_gp_uketsuke_on.gif";
icon["09"]=new Image();icon["09"].src="images/master_gp_uketsuke2.gif";
icon["10"]=new Image();icon["10"].src="images/master_gp_uketsuke2_on.gif";
icon["11"]=new Image();icon["11"].src="images/gp_kekka.gif";
icon["12"]=new Image();icon["12"].src="images/gp_kekka_on.gif";


document.images[position].src=icon[flag].src}