// gets an array of all elements with `classname`
function getElementsByClass(classname)
{
    var elements = new Array();
    var inc = 0;
    var alltags = document.all ? document.all : document.getElementsByTagName('*');
    for (var z = 0; z < alltags.length; z++)
    {
        if (alltags[z].className == classname)
        {
            elements[inc++] = alltags[z];
        }
    }
    return elements;
}

function add_to_cart(id) {
	Element.show('indicator_'+id);
	var myAjax = new Ajax.Updater('cart-wrapper', '/winter/add_to_cart/'+id, {
		method: 'get',
		onComplete: function() {
			Element.hide('indicator_'+id);
			show_cart();
			//window.ScrollTo('top', {duration: 0.5});
		}
	});
}

function remove_from_cart(id) {
	Element.show('big_cart_indicator');
	var myAjax = new Ajax.Updater('cart-wrapper', '/winter/delete_item/'+id, {
		onComplete: function() {
			Element.hide('big_cart_indicator');
		}
	});
}

function update_quantity(deliverable, quantity) {
	Element.show('big_cart_indicator');
	var params = "id=" + deliverable + "&quantity=" + quantity;
	var myAjax = new Ajax.Updater('cart-wrapper', '/winter/update_quantity/'+deliverable, {
		method: 'post',
		parameters: params,
		onComplete: function() {
			Element.hide('big_cart_indicator');
		}
	});
}

function load_cart() {
	Element.show('indicator_cart');
	var myAjax = new Ajax.Updater('cart-wrapper', '/winter/display_cart', {
		method: 'get',
		onComplete: function() {
			Element.hide('indicator_cart');
			show_cart();
		}
	});
}

function show_cart() {
	// set height of wrapper to height of content
	//var content_h = Element.getHeight('content-wrapper') + 40;
	//var window_h = getWindowHeight();
	//var cart_h = (content_h >= window_h) ? content_h : window_h;
	//$('cart-wrapper').style.height = cart_h + 'px';
	Effect.BlindDown('cart-wrapper', {
		duration: 0.8
	});
}

function hide_cart() {
	Effect.BlindUp('cart-wrapper', {
		duration: 0.4
	});
}

function getWindowHeight() {
	var h = 0;
	if (typeof(window.innerWidth) == 'number') {
		//Non-IE
		h = window.innerHeight;
	}
	else if(document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight)) {
		//IE 6+ in 'standards compliant mode'
		h = document.documentElement.clientHeight;
	}
	else if( document.body && ( document.body.clientWidth || document.body.clientHeight ) ) {
		//IE 4 compatible
		h = document.body.clientHeight;
	}
	return h;
}

function load_image(img_src) {
	var im = new Image();
	im.src = img_src;
	new Effect.Fade('img_full', {
		duration: 0.5,
		afterFinish: function() {
			change_image(im);
		}
	});
}

function change_image(im) {
	$('img_full').src = im.src;
	new Effect.Appear('img_full', {duration: 0.5});
}

function same_as_billing() {
	var fields = new Array('first_name', 'last_name', 'address1', 'address2', 'city', 'state', 'zip', 'country');
	for (var i = 0; i < fields.length; i++) {
		$("order_ship_to_"+fields[i]).value = $("order_"+fields[i]).value;
	}
}

function init() {
	// warn IE 5 Mac users
	if (/MSIE/.test(navigator.userAgent) && /Mac/.test(navigator.userAgent)) {
		alert("This site does not support IE5 Mac. Please use the following supported Mac browsers: Safari 1.2+, Firefox 1.0+");
	}
}

//Event.observe(window, 'load', init, false);
window.onload = init;