function $(){
	var elements = new Array();
	for (var i = 0; i < arguments.length; i++) {
		var element = arguments[i];
		if (typeof element == 'string')
			element = document.getElementById(element);
		if (arguments.length == 1)
			return element;
		elements.push(element);
	}
	return elements;
}

function subToggle(id){
	if($(id+'Toggle').style.display=='none'){
		$(id+'Toggle').style.display='block';
	}else{
		$(id+'Toggle').style.display='none';
	}
}

function attachToggles(numcats){
		
	for (var z=1; z<numcats; z++){
		$('maincat'+z).onclick = function() {
			subToggle(this.id);
			return false;
		};
	}
}