function openbox(num)
{
	document.getElementById("catbody"+num).style.visibility	= "visible";
	document.getElementById("catbody"+num).style.height	= "auto";
}

function closebox(num)
{
	document.getElementById("catbody"+num).style.visibility	= "hidden";
	document.getElementById("catbody"+num).style.height	= "0px";
}