/** 
 * This file is a server-side merge of jquery.js and gadgets.js.php
 * 
 * ------------------------------ jquery.js -------------------------------
 */
 
/*
 * jQuery 1.2.6 - New Wave Javascript
 *
 * Copyright (c) 2008 John Resig (jquery.com)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * $Date: 2008-05-24 14:22:17 -0400 (Sat, 24 May 2008) $
 * $Rev: 5685 $
 */
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method='scroll'+name;jQuery.fn[method]=function(val){if(!this[0])return;return val!=undefined?this.each(function(){this==window||this==document?window.scrollTo(!i?val:jQuery(window).scrollLeft(),i?val:jQuery(window).scrollTop()):this[method]=val;}):this[0]==window||this[0]==document?self[i?'pageYOffset':'pageXOffset']||jQuery.boxModel&&document.documentElement[method]||document.body[method]:this[0][method];};});jQuery.each(["Height","Width"],function(i,name){var tl=i?"Left":"Top",br=i?"Right":"Bottom";jQuery.fn["inner"+name]=function(){return this[name.toLowerCase()]()+num(this,"padding"+tl)+num(this,"padding"+br);};jQuery.fn["outer"+name]=function(margin){return this["inner"+name]()+num(this,"border"+tl+"Width")+num(this,"border"+br+"Width")+(margin?num(this,"margin"+tl)+num(this,"margin"+br):0);};});})();
/** 
 * ----------------------------- gadgets.js.php ------------------------------
 */
 
var gu_gadgets_formless = false;
var gu_gadgets_subcribe_url = "http://ijuru.com/newsletters/subscribe.php";
var gu_gadgets_ajax_url = "http://ijuru.com/newsletters/ajax.php";
var gu_gadgets_ajax_proxy = "";

/**
 * The callback for errors from the AJAX interface
 */
function gu_ajax_on_error(msg)
{
	msg = msg.replace(/<(?:.|\s)*?>/g, "");
	
	alert(msg);
}

/**
 * Because AJAX doesn't support cross-domain requests, this function allows a proxy
 * to be set as the destination for AJAX requests
 * @param url The url of the proxy script which must be on this domain
 */
function gu_gadgets_set_ajax_proxy(url)
{
	gu_gadgets_ajax_proxy = url;
}

/**
 * Creates a basic subscribe link to the subscribe page
 * @param list_id The ID of a list (optional)
 * @param text The text of the link 
 * @return The gadget HTML 
 */
function gu_gadgets_create_basic_link(list_id, text)
{
	var sub_url = gu_gadgets_subcribe_url + ((list_id > 0) ? ("?list=" + list_id) : '');
	
	return '<a href="' + sub_url + '">' + text + '</a>';
}

/**
 * Creates a basic subscribe form which redirects to the subscribe page
 * @param list_id The ID of a list (optional)
 * @param btn_text The submit button label (optional)
 * @param prefix The prefix applied to all IDs of elements
 * @return The gadget HTML  
 */
function gu_gadgets_create_basic_form(list_id, btn_text, prefix)
{
	var html = '';
	if (!gu_gadgets_formless)
		html += '<form name="' + prefix + 'subscribe_form" id="' + prefix + 'subscribe_form" method="post" action="' + gu_gadgets_subcribe_url + '">';
	
	html += '<input name="' + prefix + 'subscribe_address" id="' + prefix + 'subscribe_address" type="text" />';
	html += '<input name="' + prefix + 'subscribe_list" id="' + prefix + 'subscribe_list" type="hidden" value="' + list_id + '" />';
	
	if (btn_text != '')
		html += '<input name="' + prefix + 'subscribe_submit" id="' + prefix + 'subscribe_submit" type="submit" value="' + btn_text + '"/>';
	else
		html += '<input name="' + prefix + 'subscribe_submit" id="' + prefix + 'subscribe_submit" type="hidden" value="" />';	
	
	if (!gu_gadgets_formless)
		html += '</form>';
	return html;
}

/**
 * Creates a link which uses AJAX to submit a subscription
 * @param list_id The ID of a list
 * @param text The text of the link 
 * @return The gadget HTML
 */
function gu_gadgets_create_ajax_link(list_id, text)
{
	if (list_id == '' || list_id == 0)
		return 'This gadget requires a public list';
		
	return '<a href="javascript:gu_gadgets_submit_ajax_link(\'' + list_id + '\')">' + text + '</a>';
}

/**
 * Creates a subscribe form which uses an inline AJAX submission
 * @param list_id The ID of a list
 * @param btn_text The submit button label (optional)
 * @param prefix The prefix applied to all IDs of elements 
 * @return The gadget HTML
 */
function gu_gadgets_create_ajax_form(list_id, btn_text, email_hint, prefix)
{
	if (list_id == '' || list_id == 0)
		return 'This gadget requires a public list';

	var html = '';
	if (!gu_gadgets_formless)
		html += '<form name="' + prefix + 'subscribe_form" id="' + prefix + 'subscribe_form" method="get" action="" onsubmit="gu_gadgets_submit_ajax_form(this, \'' + prefix + '\'); return false;">';
	html += '<input name="' + prefix + 'subscribe_address" id="' + prefix + 'subscribe_address" type="text" />';
	html += '<input name="' + prefix + 'subscribe_list" id="' + prefix + 'subscribe_list" type="hidden" value="' + list_id + '" />';
	if (btn_text != '')
		html += '<input id="' + prefix + 'subscribe_submit" type="button" onclick="gu_gadgets_submit_ajax_form(this, \'' + prefix + '\')" value="' + btn_text + '"/>';
	if (!gu_gadgets_formless)
		html += '</form>';
	if (email_hint != '')
		html += '<script type="text/javascript">gu_gadgets_textfield_hint(document.getElementById("' + prefix + 'subscribe_address"), "' + email_hint + '");</script>';	
	return html;		
}

/**
 * Shortcut functions for outputting gadgets
 */
 
function gu_gadgets_write_basic_link(list_id, text)
{
	document.write(gu_gadgets_create_basic_link(list_id, text));
}

function gu_gadgets_write_basic_form(list_id, btn_text, prefix)
{
	document.write(gu_gadgets_create_basic_form(list_id, btn_text, prefix));
}

function gu_gadgets_write_ajax_link(list_id, text)
{
	document.write(gu_gadgets_create_ajax_link(list_id, text));
}

function gu_gadgets_write_ajax_form(list_id, btn_text, email_hint, prefix)
{
	document.write(gu_gadgets_create_ajax_form(list_id, btn_text, email_hint, prefix));
}


/**
 * Adds a hint value to the specified text field, i.e., when the box doesn't have focus it displays
 * the hint value, but when the user gives it focus the hint dissappears.
 * @param input The input to add the hint to
 * @param hint The hint value
 */
function gu_gadgets_textfield_hint(input, hint)
{	
	// Add custom hint property
	input.hint = hint;
	
	input.onfocus = function()
	{
		if (this.value == this.hint)
			this.value = '';
		this.style.fontStyle='normal';
		this.style.color='#000';
	}
	
	input.onblur = function()
	{
		if (this.value == '') {		
			this.style.fontStyle='italic';
			this.style.color='#BBB';
			this.value = this.hint;
		}	
	}

	input.style.fontStyle='italic';
	input.style.color='#BBB';
	input.value = hint;
}

/**
 * Gets the url for AJAX requests, using the proxy if it has been specified
 * @return The AJAX request URL
 */
function gu_gadgets_get_ajax_url()
{
	if (gu_gadgets_ajax_proxy != null && gu_gadgets_ajax_proxy != "")
		return gu_gadgets_ajax_proxy + "?url=" + escape(gu_gadgets_ajax_url);
	
	return gu_gadgets_ajax_url;
}

/**
 * Submits an AJAX subscribe request for the given list. The email address is requested in a client-side Javascript prompt.
 * @param list_id The ID of the list.
 */
function gu_gadgets_submit_ajax_link(list_id)
{
	var address = prompt("Please enter your email address");
	if (address == null)
		return;
		
	var url = gu_gadgets_get_ajax_url();
	
	$.ajax({url: url,
		type: 'post',
		data: "action=subscribe&address=" + address + "&list=" + list_id,
		success: function(res){eval(res);},
		error: function(){alert("An error occured whilst requesting subscription");}
	});
}

/**
 * Submits an AJAX subscribe request using params from the specified form
 */
function gu_gadgets_submit_ajax_form(form, prefix)
{
	var txt_address = document.getElementById(prefix + "subscribe_address");
	var txt_list = document.getElementById(prefix + "subscribe_list");
	var btn_submit = document.getElementById(prefix + "subscribe_submit");
	
	var address = (("hint" in txt_address) && (txt_address.value == txt_address.hint)) ? "" : txt_address.value;
	var list = txt_list.value;
	
	if (address == "" || list == "")
		return;
		
	var old_hint = txt_address.hint;
	
	gu_gadgets_textfield_hint(txt_address, "Requesting...");
	txt_address.disabled = true;
	if (btn_submit)	
		btn_submit.disabled = true;
	
	var url = gu_gadgets_get_ajax_url();
	
	$.ajax({url: url,
		type: 'post',
		data: "action=subscribe&address=" + address + "&list=" + list,
		success: function(res){
			eval(res);
			if (old_hint != '')
				gu_gadgets_textfield_hint(txt_address, old_hint);
			else
				txt_address.value = '';
			txt_address.disabled = false;
			if (btn_submit)		
				btn_submit.disabled = false;
		},
		error: function(){
			alert("An error occured whilst requesting subscription");
			txt_address.disabled = false;
			if (btn_submit)	
				btn_submit.disabled = false;
		}
	});
}