function ExpandableMenuClass() {
	this.CurrentlyExpandedID = '';
}
ExpandableMenuClass.prototype.toggle = function(p_id) {
	if ((this.CurrentlyExpandedID != '') && (this.CurrentlyExpandedID != p_id ) ){
		document.getElementById(this.CurrentlyExpandedID).style.display = 'none';  
		document.getElementById('L' + this.CurrentlyExpandedID).className = 'categorylink'; 
	}
	if (document.getElementById(p_id).style.display == 'block') {  
		document.getElementById(p_id).style.display = 'none';
	} else {  
		document.getElementById(p_id).style.display = 'block';
 		document.getElementById('L' + p_id).className = 'CategoryExpandedLink';  
	}  
	document.getElementById('L' + p_id).blur();
	this.CurrentlyExpandedID = p_id;
	return false;
}

var ExpMenu  = new ExpandableMenuClass();