// JavaScript Document
sfHover = function() {
	var sfEls = document.getElementById("nav").getElementsByTagName("LI");
	for (var i=0; i<sfEls.length; i++) {
		sfEls[i].onmouseover=function() {
			this.className+=" sfhover";
		}
		sfEls[i].onmouseout=function() {
			this.className=this.className.replace(new RegExp(" sfhover\\b"), "");
		}
	}
}
if (window.attachEvent) window.attachEvent("onload", sfHover);

function change(id) {
	identity = document.getElementById(id);
	idlink = document.getElementById("link_"+id);
		if (identity.className=="hide") {
			identity.className="show";
			idlink.innerHTML="-";
		} else {
			identity.className="hide";
			idlink.innerHTML="+";
		}
}

function plainchange(id) {
	identity=document.getElementById(id);
	if (identity.className=="hide") {
		identity.className="show";
	} else {
		identity.className="hide";
	}
}