// JavaScript Document

var visible = new Array();

function categoryClicked(termname, termnumber){
	var termElement = document.getElementById(termname);
	if(termElement){
		
		setVisibility(termname, termElement);

		if(visible[termname])
			visible[termname] = false;
		else
			visible[termname] = true;
	}
	else
		alert("Term not found: "+termname);
}

function setVisibility(termname, theElement){
	if( visible[termname]){
			theElement.style.display="none";
	}
	else{
			theElement.style.display="block";
	}
}