function Services() {
	this.linkID = null;
};

Services.prototype.toggle=function(id) {	
	if (this.linkID != null && Element.visible(this.linkID)) {
		this.close(this.linkID);		
	}
	if (!Element.visible(id)) {
		new Effect.SlideDown(id);	
		var link = $(id + "Link");	
		link.innerHTML="Close";
	}
	this.linkID=id;
};
Services.prototype.close=function(id) {
	new Effect.SlideUp(id);
	
	var link = $(id + "Link");	
	link.innerHTML="Learn more";
};