function gazo_chg(gazo,image)
{
    document.images[gazo].src=image;
}

function gazo_del(gazo)
{
    document.images[gazo].src="/img/no_image.gif";
}

function kaihei(opn,cls) {
var opnObjID=document.getElementById( opn );
var clsObjID=document.getElementById( cls );
if(clsObjID.className=='close') {
opnObjID.style.display='none';
opnObjID.className='close';
clsObjID.style.display='block';
clsObjID.className='open';
}else{
opnObjID.style.display='block';
opnObjID.className='open';
clsObjID.style.display='none';
clsObjID.className='close';
}
}