// JavaScript Document
function init() {
	for (j=1; j<41; j++) {
		thediv = "cat"+j;
		e = document.getElementById(thediv);
		e.style.display = "none";
	}
}
function showhide(n) {
	thediv = "cat"+n;
	e = document.getElementById(thediv);
	theimage = "img"+n;
	i = document.getElementById(theimage);
	if (e.style.display == "none") {e.style.display = "block"; i.src="images/minus-icon.gif";}
	else {e.style.display = "none"; i.src="images/plus-icon.gif";}
}