function menu(id)
{
	if(document.all){
		OBJ = document.all(id).style;
	}else if(document.getElementById){
		OBJ = document.getElementById(id).style;
	}
	if(OBJ) OBJ.display=='none'?OBJ.display='':OBJ.display='none';
}

function mo(id,url,width,height)
{
	document.images[id].src = url;
	if(width != 0){
		document.images[id].width = width;
	}
	if(height != 0){
		document.images[id].height = height;
	}
}
function er(id)
{
	document.images[id].src = "error.jpg";
	document.images[id].width = 200;
	document.images[id].height = 300;
}
function cb()
{
	if( document.sf.check01.checked == false && document.sf.check02.checked == false && document.sf.check03.checked == false ){
		document.sf.check00.checked = true;
		document.sf.check00.disabled = true;
	}else{
		document.sf.check00.disabled = false;
	}
}