function Toggle(id){
	this.id = id;
	
	this.make = function(btn,txt){
		var btn = btn;
		var element = document.getElementById(this.id);
			if(element.style.display!="block"){
				element.style.display = "block";
				btn.innerHTML = "« cerrar "+txt;
			} else {
				element.style.display = "none";
				btn.innerHTML = "« ver "+txt;
			}
	}
	
}

var tabla = new Toggle('tabla');