// JavaScript Document
/* Smoothbox */
// on page load call TB_init
//window.addEvent((window.ie ? 'load' : 'domready'), TB_init);

// prevent javascript error before the content has loaded
TB_WIDTH = 0;
TB_HEIGHT = 0;
var TB_doneOnce = 0;

// add smoothbox to href elements that have a class of .smoothbox
function TB_init(){
    $$("a.smoothbox").each(function(el){
        el.onclick = TB_bind
    });
}

function TB_bind(event){
    var event = new Event(event);
    // stop default behaviour
    event.preventDefault();
    // remove click border
    this.blur();
    // get caption: either title or name attribute
    var caption = this.title || this.name || "";
    // get rel attribute for image groups
    // display the box for the elements href
    TB_show(caption, this.href);
    this.onclick = TB_bind;
    return false;
}

// called when the user clicks on a smoothbox link
function TB_show(caption, url){

    // create iframe, overlay and box if non-existent
    
    if (!$("TB_overlay")) {
        new Element('iframe').setProperty('id', 'TB_HideSelect').injectInside(document.body);
        $('TB_HideSelect').setOpacity(0);
        new Element('div').setProperty('id', 'TB_overlay').injectInside(document.body);
        $('TB_overlay').setOpacity(0);
        TB_overlaySize();
        new Element('div').setProperty('id', 'TB_load').injectInside(document.body);
        $('TB_load').innerHTML = "<img src='http://biglietti.auguri.it/img/ico-operazione-in-corso.gif' />";
        TB_load_position();
        
        $('TB_overlay').set('tween', {
            duration: 400
        });
        $('TB_overlay').tween('opacity', 0, 0.6);
        
    }
    
    if (!$("TB_load")) {
        new Element('div').setProperty('id', 'TB_load').injectInside(document.body);
        $('TB_load').innerHTML = "<img src='http://biglietti.auguri.it/img/ico-operazione-in-corso.gif' />";
        TB_load_position();
    }
    
    if (!$("TB_window")) {
        new Element('div').setProperty('id', 'TB_window').injectInside(document.body);
        $('TB_window').setOpacity(0);
    }
    
    $("TB_overlay").onclick = TB_remove;
    window.onscroll = TB_position;
    
    // check if a query string is involved
    var baseURL = url.match(/(.+)?/)[1] || url;
   
	//code to show html pages
	var queryString = url.match(/\?(.+)/)[1];
	var params = TB_parseQuery(queryString);
	
	TB_WIDTH = (params['w'] * 1) + 30;
	TB_HEIGHT = (params['h'] * 1) + 40;
	
	var ajaxContentW = TB_WIDTH - 30, ajaxContentH = TB_HEIGHT - 45;
	
	$("TB_window").innerHTML += "<div id='TB_title'><div id='TB_ajaxWindowTitle'>" + caption + "</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='Chiudi'>Chiudi</a></div></div><iframe frameborder='0' hspace='0' src='" + url + "' id='TB_iframeContent' name='TB_iframeContent' style='width:" + (ajaxContentW + 29) + "px;height:" + (ajaxContentH + 17) + "px;' onload='TB_showWindow()'></iframe>";
	
	$("TB_closeWindowButton").onclick = TB_remove;
	
	TB_position();
	if (frames['TB_iframeContent'] == undefined) {//be nice to safari
		$(document).keyup(function(e){
			var key = e.keyCode;
			if (key == 27) {
				TB_remove()
			}
		});
		TB_showWindow();
	}
		
    window.onresize = function(){
        TB_position();
        TB_load_position();
        TB_overlaySize();
    }
    
    document.onkeyup = function(event){
        var event = new Event(event);
        if (event.code == 27) { // close
            TB_remove();
        }
    }
    
}

//helper functions below

function TB_showWindow(){
    //$("TB_load").dispose();
    //$("TB_window").setStyles({display:"block",opacity:'0'});
    
    if (TB_doneOnce == 0) {
        TB_doneOnce = 1;
        
        $('TB_window').set('tween', {
            duration: 250,
            onComplete: function(){
                if ($('TB_load')) {
                    $('TB_load').dispose();
                }
            }
        });
        $('TB_window').tween('opacity', 0, 1);
        
    }
    else {
        $('TB_window').setStyle('opacity', 1);
        if ($('TB_load')) {
            $('TB_load').dispose();
        }
    }
}

function TB_remove(){
    $("TB_overlay").onclick = null;
    document.onkeyup = null;
    document.onkeydown = null;
    
    if ($('TB_imageOff')) 
        $("TB_imageOff").onclick = null;
    if ($('TB_closeWindowButton')) 
        $("TB_closeWindowButton").onclick = null;
    if ($('TB_prev')) {
        $("TB_prev").onclick = null;
    }
    if ($('TB_next')) {
        $("TB_next").onclick = null;
    }
    
    
    $('TB_window').set('tween', {
        duration: 250,
        onComplete: function(){
            $('TB_window').dispose();
        }
    });
    $('TB_window').tween('opacity', 1, 0);
    
    
    
    $('TB_overlay').set('tween', {
        duration: 400,
        onComplete: function(){
            $('TB_overlay').dispose();
        }
    });
    $('TB_overlay').tween('opacity', 0.6, 0);
    
    window.onscroll = null;
    window.onresize = null;
    
    $('TB_HideSelect').dispose();
    TB_init();
    TB_doneOnce = 0;
    return false;
}

function TB_position(){
    $('TB_window').set('morph', {
        duration: 75
    });
    $('TB_window').morph({
		width: TB_WIDTH + 'px',
		left: (window.getScrollLeft() + (window.getWidth() - TB_WIDTH) / 2) + 'px',
		top: (window.getScrollTop() + (window.getHeight() - TB_HEIGHT) / 2) + 'px'
	});	
}

function TB_overlaySize(){
    // we have to set this to 0px before so we can reduce the size / width of the overflow onresize 
    $("TB_overlay").setStyles({
        "height": '0px',
        "width": '0px'
    });
    $("TB_HideSelect").setStyles({
        "height": '0px',
        "width": '0px'
    });
    $("TB_overlay").setStyles({
        "height": window.getScrollHeight() + 'px',
        "width": window.getScrollWidth() + 'px'
    });
    $("TB_HideSelect").setStyles({
        "height": window.getScrollHeight() + 'px',
        "width": window.getScrollWidth() + 'px'
    });
}

function TB_load_position(){
    if ($("TB_load")) {
        $("TB_load").setStyles({
            left: (window.getScrollLeft() + (window.getWidth() - 56) / 2) + 'px',
            top: (window.getScrollTop() + ((window.getHeight() - 20) / 2)) + 'px',
            display: "block"
        });
    }
}

function TB_parseQuery(query){
    // return empty object
    if (!query) 
        return {};
    var params = {};
    
    // parse query
    var pairs = query.split(/[;&]/);
    for (var i = 0; i < pairs.length; i++) {
        var pair = pairs[i].split('=');
        if (!pair || pair.length != 2) 
            continue;
        // unescape both key and value, replace "+" with spaces in value
        params[unescape(pair[0])] = unescape(pair[1]).replace(/\+/g, ' ');
    }
    return params;
}