var nav = 'nav1';

var main = {
	
	init: function () {

		for(i=1; i<14; i++) {
			var TmpNav = 'nav'+i;
			Element.setStyle (TmpNav, {display:'none'});
		}
		Element.setStyle ('nav1', {display:'block'});
	},
	
	hide: function (ActNav) {
		
		for(i=1; i<14; i++) {
			var TmpNav = 'nav'+i;
			if (document.getElementById(TmpNav).style.display == 'block') {
				new Effect.BlindUp (TmpNav, { duration:1.0,
					afterFinish: function () {
						new Effect.BlindDown (ActNav, { duration:1.0,
							afterFinish: function () {
								Element.setStyle (ActNav, {display:'block'});
								main.changeBG(ActNav);
							}				   
						});
					}				 
				});
			}
		}
	},
	
	changeBG: function (ActNav) {
		if (ActNav == 'nav1') {
			Element.removeClassName('body', 'bg2');
			Element.addClassName('body', 'bg1');
		} else {
			Element.removeClassName('body', 'bg1');
			Element.addClassName('body', 'bg2');
		}
	}

}


















/*		new Effect.BlindUp ('parent', { duration:1.5,
		
			afterFinish: function () {
				document.getElementById('parent').innerHTML = content2;
				new Effect.BlindDown ('parent', { duration:1.0 });

			}
		
		});*/