function showLoginForm(){
	var loginform = new YAHOO.widget.Panel("acc_loginform", { fixedcenter:true, visible:true, modal:true} );
	loginform.render();
	
	/*
	var acc_botones = document.getElementById("acc_botones");
	var acc_loginform = document.getElementById("acc_loginform");
	if(YAHOO.util.Dom.getStyle(acc_loginform, "display") == "none"){
		YAHOO.util.Dom.setStyle(acc_botones, "display", "none");
		YAHOO.util.Dom.setStyle(acc_loginform, "display", "block");
	}
	*/
}
YAHOO.util.Event.onContentReady("botonera", function () {
	var oMenuBar = new YAHOO.widget.MenuBar("botonera", {
												autosubmenudisplay: true, 
												hidedelay: 750, 
												lazyload: true });
	oMenuBar.render();
});