jQuery.extend({
    slide: function($container, child_element_no, callback) {
        var $slider = $container.children(":first");
        var new_offset = $slider.children(':eq('+child_element_no+')').offset().left - $container.offset().left - ($slider.offset().left - $container.offset().left);
        $slider.animate( {left: -1 * new_offset}, 600, 'easeOutQuad', callback);
        return this;
    },
    slide_page: function($container, page_no, size, callback) {
        if (typeof(size) == 'undefined') {
            size = parseInt($container.parent().css('width').match(/\d+/));
        }
        var new_offset = size * page_no;
        $container.animate( {left: -1 * new_offset}, 600, 'easeOutQuad', callback);
        return this;
    },
    imgLoad: function(src, loaded_callback) {
        var img = new Image();
        $(img).load( function () {
            loaded_callback(img);
        });
        img.src = src;
        return this;
    },
    dimIn: function (user_css, callback, on_click) {
        $dim = $("#dim");
        if ($dim.length == 0) {
            $dim = $("<div />").attr('id', 'dim').css(
                { position: 'absolute',
                  top: 0,
                  left: 0,
                  width: '100%',
                  height: $(document).height(),
                  zIndex: 20,
                  background: '#004375',
                  opacity: .6 });
            $('body').prepend($dim);
        }
        if (on_click != undefined) {
            $dim.click(on_click);
        }
        if ($dim.data('act') == true) return false;
        if (user_css != undefined) {
            $dim.css(user_css);
        }
        return $dim.data('act', true).fadeIn(400, callback);
    },
    dimOut: function (callback) {
        $dim = $("#dim").unbind('click');
        if ($dim.data('act') == true) {
            $dim.fadeOut(400, callback).data('act', false);
        }
    },
    alert: function (message) {
        $.dimIn({}, null, function () {
            window.alert_box.fadeOut();
            $.dimOut();
        });
        if (window.alert_box == undefined) {
            window.alert_box = $('<div style="width: 400px; z-index:99999999; display: none; cursor: pointer; position: absolute; padding: 10px; background: #fff; box-shadow: 0 0 5px #666; -moz-box-shadow: 0 0 5px #666; -webkit-box-shadow: 0 0 5px #666;" />').appendTo('body').click( function () {
                $(this).fadeOut();
                $.dimOut();
            } );
        }
        window.alert_box.html('<p style="display: block; text-align: left;">'+message+'</p>').center().fadeIn();
    }
});

jQuery.fn.extend({
    defaultText: function () {
        var $t = this;
        if ($t.length > 1) {
            $t.each(function () {
                $(this).defaultText();
            })
            return $t;
        }
        $t.bind('focus', function() {
            if ($t.data('default-text') == undefined) {
                $t.data('default-text', $t.val());
            }
            if ($t.val() == $t.data('default-text')) {
                $t.val('');
            }
        });
        $t.blur(function () {
            if (($t.val() == '') && ($t.data('default-text') != undefined)) {
                $t.val($t.data('default-text'));
            }
        });
        return $t;
    },
    center: function () {
        this.css( { position: 'absolute',
                    top: $(document).scrollTop() + (Math.ceil($(window).height()) - this.height()) / 2,
                    left: '50%',
                    marginLeft: -1 * Math.ceil(this.width() / 2) } );

        return this;
    },
	fadeOver: function (speed, callback, css, attr) {
        var $t = this;
		c = $t.clone();
		c.css( { position: 'absolute',
                 width: $t.width(),
                 height: $t.height(),
                 display: 'none',
                 zIndex: 2 } );
                if (css != undefined) {
                    c.css(css);
                }
                if (attr != undefined) {
                    c.attr(attr);
                }
                $tp = $t.parent(); // container
		$tp.css( { width: $tp.width(),
                   height: $tp.height()} );

		c.insertBefore($t).fadeTo(speed, 1, function () {
			c.next().remove();
			c.css( { position: 'relative', zIndex: 1} );
			if (typeof(callback) == 'function') callback();
		});
        return $t;
	}
});

function validate_email(email) {
    var filter = /^([a-zA-Z0-9_.-])+@(([a-zA-Z0-9-])+.)+([a-zA-Z0-9]{2,4})+$/;
    return filter.test(email);
}



function popup(url) {
    
    var my_popup = $('#popup');
    
    my_popup.html('<div class="popupas-content"><a href="#" title="" id="popup-close" class="close">&nbsp;</a><div class="clr">&nbsp;</div></div>');

    var img = new Image();
        
    $(img).load(function () { // once the image has loaded, execute this code

        my_popup.children('.popupas-content').children('img').remove();

        // pridedame nauja uzkrauta img
        my_popup.children('.popupas-content').append(this);
        
        my_popup.css('width', this.width);
        my_popup.css('height', this.height);

        my_popup.children('.popupas-content').css('width', this.width);
        my_popup.children('.popupas-content').css('height', this.height+16);
        
        my_popup.center();

        $.dimIn({}, function () {
            
            my_popup.fadeIn(400);

        }, function () {
            my_popup.fadeOut(400);
            $.dimOut();
        });
    })
    .attr('src', url); // *finally*, set the src attribute

    $("#popup-close").click(function () {
        my_popup.fadeOut();
        $.dimOut();
        return false;
    });
}


/*
function popup(url) {

    if (typeof(window.popuped) == 'undefined') {
        window.popuped = $('<div style="z-index:99999999; display: none; cursor: pointer; position: absolute; padding: 7px; background: #ffffff; box-shadow: 0 0 5px #666; -moz-box-shadow: 0 0 5px #666; -webkit-box-shadow: 0 0 5px #666;" />').appendTo('body').click( function () {
            $(this).find('img').fadeOut(400).end().fadeOut(400);
            $.dimOut();
        } );
        $('<img style="display: none" />').appendTo(window.popuped);
    }

    $popuped = window.popuped;

    $.dimIn({}, null, function () {
        window.popuped.click();
    });

    var props = { width: 100,
                  height: 100,
                  left: Math.ceil($(window).width() / 2) - 50,
                  top: $(document).scrollTop() + Math.ceil(($(window).height() - 25) / 2) - 20};

    if ($popuped.css('display') == 'none') {
        $popuped.css(props);
    } else {
        $popuped.find('img').fadeOut(400);
    }

    var img = new Image();

    $popuped.fadeIn(400);

    $(img).load( function () {

        $popuped.find('img').attr('src', img.src).end().animate(
            {
                left: Math.ceil(($(window).width() - img.width) / 2),
                top: (($(window).height() - img.height) / 2) + $(document).scrollTop(),
                height: img.height,
                width: img.width
            }, 400, function () {
                $(this).find('img').fadeIn('fast');
            }
        );


    });

    img.src = url;

}*/

// t: current time, b: begInnIng value, c: change In value, d: duration
jQuery.easing['jswing'] = jQuery.easing['swing'];

jQuery.extend( jQuery.easing,
{
	def: 'easeOutQuad',
	swing: function (x, t, b, c, d) {
		//alert(jQuery.easing.default);
		return jQuery.easing[jQuery.easing.def](x, t, b, c, d);
	},
	easeInQuad: function (x, t, b, c, d) {
		return c*(t/=d)*t + b;
	},
	easeOutQuad: function (x, t, b, c, d) {
		return -c *(t/=d)*(t-2) + b;
	},
	easeInOutQuad: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t + b;
		return -c/2 * ((--t)*(t-2) - 1) + b;
	},
	easeInCubic: function (x, t, b, c, d) {
		return c*(t/=d)*t*t + b;
	},
	easeOutCubic: function (x, t, b, c, d) {
		return c*((t=t/d-1)*t*t + 1) + b;
	},
	easeInOutCubic: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t + b;
		return c/2*((t-=2)*t*t + 2) + b;
	},
	easeInQuart: function (x, t, b, c, d) {
		return c*(t/=d)*t*t*t + b;
	},
	easeOutQuart: function (x, t, b, c, d) {
		return -c * ((t=t/d-1)*t*t*t - 1) + b;
	},
	easeInOutQuart: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
		return -c/2 * ((t-=2)*t*t*t - 2) + b;
	},
	easeInQuint: function (x, t, b, c, d) {
		return c*(t/=d)*t*t*t*t + b;
	},
	easeOutQuint: function (x, t, b, c, d) {
		return c*((t=t/d-1)*t*t*t*t + 1) + b;
	},
	easeInOutQuint: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return c/2*t*t*t*t*t + b;
		return c/2*((t-=2)*t*t*t*t + 2) + b;
	},
	easeInSine: function (x, t, b, c, d) {
		return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
	},
	easeOutSine: function (x, t, b, c, d) {
		return c * Math.sin(t/d * (Math.PI/2)) + b;
	},
	easeInOutSine: function (x, t, b, c, d) {
		return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
	},
	easeInExpo: function (x, t, b, c, d) {
		return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
	},
	easeOutExpo: function (x, t, b, c, d) {
		return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
	},
	easeInOutExpo: function (x, t, b, c, d) {
		if (t==0) return b;
		if (t==d) return b+c;
		if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
		return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
	},
	easeInCirc: function (x, t, b, c, d) {
		return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
	},
	easeOutCirc: function (x, t, b, c, d) {
		return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
	},
	easeInOutCirc: function (x, t, b, c, d) {
		if ((t/=d/2) < 1) return -c/2 * (Math.sqrt(1 - t*t) - 1) + b;
		return c/2 * (Math.sqrt(1 - (t-=2)*t) + 1) + b;
	},
	easeInElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
	},
	easeOutElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
	},
	easeInOutElastic: function (x, t, b, c, d) {
		var s=1.70158;var p=0;var a=c;
		if (t==0) return b;  if ((t/=d/2)==2) return b+c;  if (!p) p=d*(.3*1.5);
		if (a < Math.abs(c)) { a=c; var s=p/4; }
		else var s = p/(2*Math.PI) * Math.asin (c/a);
		if (t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
		return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*.5 + c + b;
	},
	easeInBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158;
		return c*(t/=d)*t*((s+1)*t - s) + b;
	},
	easeOutBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158;
		return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
	},
	easeInOutBack: function (x, t, b, c, d, s) {
		if (s == undefined) s = 1.70158; 
		if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
		return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
	},
	easeInBounce: function (x, t, b, c, d) {
		return c - jQuery.easing.easeOutBounce (x, d-t, 0, c, d) + b;
	},
	easeOutBounce: function (x, t, b, c, d) {
		if ((t/=d) < (1/2.75)) {
			return c*(7.5625*t*t) + b;
		} else if (t < (2/2.75)) {
			return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
		} else if (t < (2.5/2.75)) {
			return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
		} else {
			return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
		}
	},
	easeInOutBounce: function (x, t, b, c, d) {
		if (t < d/2) return jQuery.easing.easeInBounce (x, t*2, 0, c, d) * .5 + b;
		return jQuery.easing.easeOutBounce (x, t*2-d, 0, c, d) * .5 + c*.5 + b;
	}
});