window.addEvent('domready', function(){
	//$('tab_logo').setStyle('visibility', 'hidden');
	if(Browser.Engine.trident4){
		alert('This site is best viewed on Internet Explorer 7 or later.\nYou are running an outdated version of Internet Explorer.\nPlease visit http://www.microsoft.com/windows/internet-explorer/ to download the latest version.');
		return false;
	}
	var tl = $('tab_logo');
	if(tl){
		// var tab_logo_slide = new Fx.Slide('tab_logo_img', {duration:0.01}).slideOut('horizontal').chain(function(e){
			// $('tab_logo').setStyle('visibility', 'visible');
			// $('tab_logo_img').setStyle('opacity', 0);
			// $('tab_logo_img').get('tween').start('opacity', 1);
			// this.options['duration'] = 700;
			// this.options['transition'] = Fx.Transitions.Expo.easeOut;
			// this.slideIn('horizontal');
		// });
		var og_width = tl.getStyle('width');
		tl.setStyle('width', '0px');
		tl.setStyle('overflow', 'hidden');
		tl.set('tween', {duration:800, transition:Fx.Transitions.Expo.easeOut});
		tl.tween('width', og_width);
		
	}
	var nlsu = $('newsletter_signup_container');
	if(nlsu){
		// $('newsletter_signup_container').setStyle('visibility', 'hidden');
		// var newsletter_signup_slide = new Fx.Slide($('newsletter_signup_container').getElement('div'), {duration:0.01}).slideOut().chain(function(e){
			// this.options['duration'] = 500;
			// $('newsletter_signup_container').setStyle('visibility', 'visible');
			// this.options['transition'] = Fx.Transitions.Expo.easeOut;
			// this.slideIn('vertical');
		// });
		var og_height = nlsu.getStyle('height');
		nlsu.setStyle('height', '0px');
		nlsu.setStyle('overflow', 'hidden');
		nlsu.set('tween', {duration:700, transition:Fx.Transitions.Expo.easeOut});
		var nlsu_slide = function(e){
			nlsu.tween('height', og_height);
		}
		nlsu_slide.delay(800, this, nlsu);
	}
	var menu_items = $('main_nav').getElements('li');
	for(i=0; i<menu_items.length; i++){
		var mi = menu_items[i];
		var tween = new Fx.Slide(mi.getElement(':nth-child(first)'), {duration:800, transition:Fx.Transitions.Expo.easeOut}).hide();
		mi.slider = tween;
		mi.setStyle('opacity', 0);
		var fade_function = function(el){
			el.tween('opacity', 1);
			el.slider.slideIn();
		}
		fade_function.delay((i)*180, this, mi);
	}
});
function valid_newsletter(){
	if(valid_email($('newsletter_email').value)){
		$('newsletter_signup_form_confirm').removeClass('hidden');
		$('newsletter_signup_form').setStyle('display', 'none');
		return true;
	}else{
		$('newsletter_signup_error').innerHTML = 'Please enter a valid email address';
		$('newsletter_signup_error').highlight();
		return false;
	}
};
function valid_email(email){
	var x = email;
	var filter  = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
	if(filter.test(x)){
		return true;
	}
	else{
		return false;
	}
};