// login panel animation
var anim;
init = function() {   
	   anim = new YAHOO.util.Anim('login', {top: {from: -73, to: 0}}, 0.15, YAHOO.util.Easing.easeIn);
	   YAHOO.util.Event.on('login-link', 'click', showLoginPanel);
	};

function showLoginPanel(ev){
	anim.animate();
	YAHOO.util.Event.preventDefault(ev);
}
	
YAHOO.util.Event.onAvailable('login', init);

function chdisp(obj, state)
{
 	state = typeof(state) != 'undefined' ? state : ''; 
	var el = document.getElementById(obj);
	if (el == null) return;
	switch(state) {
		case 'on':
			el.className ='sh';
			break;
		case 'off':
			el.className = 'hd';
			break;
		default:
			el.className = (el.className == 'hd') ? 'sh' : 'hd';
			break;
		}
}