function y_init() {
	Event.observe(document.onresize ? document : window, "resize", y_adjust_layout);
	y_adjust_layout();
	y_init_cal();
}

function y_adjust_layout() {
	var viewportWidth = document.viewport.getWidth();
			
	var links = $('ylinks');	
	if (links == undefined) {		
		return;
	}		
	
	var params = {};
	if (page == 'search') {		
		params['top'] = '190px';
	} else if (page == 'detail') {		
		params['top'] = '150px';
	}
	var linksWidth = links.getWidth();

    	var leftPos = viewportWidth - linksWidth;	
	params['left'] = leftPos + 'px';
		
	links.setStyle(params);
}

function y_init_cal() {
	if ($('data_arrivo') != undefined) {
		Calendar.setup({
			trigger    : "data_arrivo",
			inputField : "data_arrivo",
			dateFormat : "%m/%d/%Y",
			disabled: function(date) {	
				if (date == undefined) return false;
				var asString = Calendar.printDate(date, '%Y-%m-%d');
				return asString < '2010-08-01';
    			},
			onSelect   : function() {
				var date = this.selection.get();
            			date = Calendar.intToDate(date);
            			date = Calendar.printDate(date, "%Y-%m-%d");
            			$("arrivo").value = date;
				this.hide();
			}
       	 	});
	}

	if ($('data_partenza') != undefined) {
                Calendar.setup({
                        trigger    : "data_partenza",
                        inputField : "data_partenza",
                        dateFormat : "%m/%d/%Y",
			disabled: function(date) {	
				if (date == undefined) return false;
				var asString = Calendar.printDate(date, '%Y-%m-%d');
				return asString < '2010-08-01';
    			},
			onSelect   : function() {
				var date = this.selection.get();
            			date = Calendar.intToDate(date);
            			date = Calendar.printDate(date, "%Y-%m-%d");
            			$("partenza").value = date;
				this.hide();
			}
                });
	}

}

var PhotoGallery = {
	create: function(id, images) {
		this.current = 0;
		this.id = id;
		this.images = images;
		$('foto').src = 'office/album/large500/' + this.id + "/" + images[0];
	},
	next: function() {
		if ((this.images.length - 1) > this.current) {
			this.current++;
		} else {
			this.current = 0;
		}
		$('foto').src = 'office/album/large500/' + this.id + "/" + this.images[this.current];
	},
	prev: function() {
		if (this.current > 0) {
			this.current--;
		} else {
			this.current = this.images.length - 1;
		} 
		$('foto').src = 'office/album/large500/' + this.id + "/" + this.images[this.current];
	},
	goto: function(p) {
		if (p >= 0 && p < this.images.length) {
                        this.current = p;
                        $('foto').src = 'office/album/large500/' + this.id + "/" + this.images[this.current];
                }
	}
};

function y_search_by_name() {
        $('name-search').show();
        $('adv-search').hide();
}

function y_search_advanced() {
        $('name-search').hide();
        $('adv-search').show();
}

function y_check_email(email) {
	var reg = /^([A-Za-z0-9_\-\.])+\@([A-Za-z0-9_\-\.])+\.([A-Za-z]{2,4})$/;
	return reg.test(email);
}

function y_check_book() {
        var text = "";
        if ($('nome').getValue().blank()) {
                text += "* Name is missing\n";
        }
        if ($('cognome').getValue().blank()) {
                text += "* Surname is missing\n";
        }
        if ($('regione').getValue().blank()) {
                text += "* Country is missing\n";
        }
        if ($('email').getValue().blank()) {
                text += "* Email is missing\n";
        } else if (!y_check_email($('email').getValue())) {
                text += "* Email not valid\n";
	}
        if ($('telefono').getValue().blank()) {
                text += "* Phone number is missing\n";
        }

        if (!text.empty()) {
                alert(text);
                return false;
        }

        if ($('consenso').getValue() != 'on') {
                alert('* Accept Term and Condition');
                return false;
        }

        return true;
}

function y_check_contactus() {
        var text = "";
        if ($('email').getValue().blank()) {
                text += "* Email is missing\n";
        } else if (!y_check_email($('email').getValue())) {
                text += "* Email not valid\n";
        }

        if (!text.empty()) {
                alert(text);
                return false;
        }

        return true;
}