if(navigator.appVersion.charAt(0)>=3){
var imgAry=new Array();

for(i=0;i<12;i++){
imgAry[i]=new Image();
}

imgAry[0].src="/images/navi_home.gif";
imgAry[1].src="/images/navi_home_on.gif";
imgAry[2].src="/images/navi_kokemomo.gif";
imgAry[3].src="/images/navi_kokemomo_on.gif";
imgAry[4].src="/images/navi_member.gif";
imgAry[5].src="/images/navi_member_on.gif";
imgAry[6].src="/images/navi_schedule.gif";
imgAry[7].src="/images/navi_schedule_on.gif";
imgAry[8].src="/images/navi_contact.gif";
imgAry[9].src="/images/navi_contact_on.gif";
imgAry[10].src="/images/navi_blog.gif";
imgAry[11].src="/images/navi_blog_on.gif";
}

function changeImg(dim,cnt){
if(navigator.appVersion.charAt(0)>=3){
document.images[dim].src=imgAry[cnt].src;
};
};