(function($) {
    $.fn.jqzoom = function(options) {
        var settings = {
            zoomType: 'standard',
            zoomWidth: 300,
            zoomHeight: 300,
            xOffset: 10,
            yOffset: 0,
            position: "right",
            lens: true,
            lensReset: false,
            imageOpacity: 0.2,
            title: false,
            alwaysOn: false,
            showEffect: 'show',
            hideEffect: 'hide',
            fadeinSpeed: 'fast',
            fadeoutSpeed: 'slow',
            preloadImages: true,
            showPreload: false,
            preloadText: 'Loading¡­',
            preloadPosition: 'center'
        };
        options = options || {};
        $.extend(settings, options);
        return this.each(function() {
            var a = $(this);
            var aTitle = a.attr('title');
            $(a).removeAttr('title');
            $(a).css('outline-style', 'none');
            var img = $("img", this);
            var imageTitle = img.attr('title');
            img.removeAttr('title');
            var smallimage = new Smallimage(img);
            var smallimagedata = {};
            var btop = 0;
            var bleft = 0;
            var ZoomTitle = (trim(aTitle).length > 0) ? aTitle :
			(trim(imageTitle).length > 0) ? imageTitle : null;
            var ZoomTitleObj = new zoomTitle();
            var largeimage = new Largeimage(a[0].href);

            var lens = new Lens();
            var lensdata = {};
            var largeimageloaded = false;
            var scale = {};
            largeimage.loadimage();
            var stage = null;
            var running = false;
            var mousepos = {};
            var firstime = 0;
            var preloadshow = false;
            var isMouseDown = false;
            var dragstatus = false
            smallimage.loadimage();
            $(this).click(function() { return false; });
            $(this).hover(function(e) {
                mousepos.x = e.pageX;
                mousepos.y = e.pageY;
                activate();
            }, function() {
                deactivate();
            });
            if (settings.alwaysOn) {
                setTimeout(function() { activate(); }, 150);
            }
            function activate() {
                if (!running) {
                    smallimage.findborder();
                    running = true;
                    imageTitle = img.attr('title');
                    img.removeAttr('title');
                    aTitle = a.attr('title');
                    $(a).removeAttr('title');
                    if (!largeimage || $.browser.safari) {
                        largeimage = new Largeimage(a[0].href);
                    }
                    if (!largeimageloaded || $.browser.safari) {
                        if ($.browser.msie && $.browser.version > 6) {
                            largeimage = new Largeimage(a[0].href);
                        }
                        largeimage.loadimage();
                    } else {
                        largeimage = new Largeimage(a[0].href);
                        largeimage.loadimage();
                        if (settings.zoomType != 'innerzoom') {
                            stage = new Stage();
                            stage.activate();
                        }
                        lens = new Lens;
                        lens.activate();
                    }
                    a[0].blur();
                    return false;
                }
            }
            function deactivate() {
                if (settings.zoomType == 'reverse' && !settings.alwaysOn) {
                    img.css({ 'opacity': 1 });
                }
                if (!settings.alwaysOn) {
                    running = false;
                    largeimageloaded = false;
                    $(lens.node).unbind('mousemove');
                    lens.remove();
                    if ($('div.jqZoomWindow').length > 0) {
                        stage.remove();
                    }
                    if ($('div.jqZoomTitle').length > 0) {
                        ZoomTitleObj.remove();
                    }
                    img.attr('title', imageTitle);
                    a.attr('title', aTitle);
                    $().unbind();
                    a.unbind('mousemove');
                    firstime = 0;
                    if (jQuery('.zoom_ieframe').length > 0) {
                        jQuery('.zoom_ieframe').remove();
                    }
                } else {
                    if (settings.lensReset) {
                        switch (settings.zoomType) {
                            case 'innerzoom':
                                largeimage.setcenter();
                                break;
                            default:
                                lens.center();
                                break;
                        }
                    }
                }
                if (settings.alwaysOn) {
                    activate();
                }
            };
            function Smallimage(image) {
                this.node = image[0];
                this.loadimage = function() {
                    this.node.src = image[0].src;
                };
                this.findborder = function() {
                    var bordertop = '';
                    bordertop = $(img).css('border-top-width');
                    btop = '';
                    var borderleft = '';
                    borderleft = $(img).css('border-left-width');
                    bleft = '';
                    if (bordertop) {
                        for (i = 0; i < 3; i++) {
                            var x = [];
                            x = bordertop.substr(i, 1);
                            if (isNaN(x) == false) {
                                btop = btop + '' + bordertop.substr(i, 1);
                            } else {
                                break;
                            }
                        }
                    }
                    if (borderleft) {
                        for (i = 0; i < 3; i++) {
                            if (!isNaN(borderleft.substr(i, 1))) {
                                bleft = bleft + borderleft.substr(i, 1)
                            } else {
                                break;
                            }
                        }
                    }
                    btop = (btop.length > 0) ? eval(btop) : 0;
                    bleft = (bleft.length > 0) ? eval(bleft) : 0;
                }
                this.node.onload = function() {
                    a.css({ 'cursor': 'crosshair', 'display': 'block' });
                    if (a.css('position') != 'absolute' && a.parent().css('position')) {
                        a.css({ 'cursor': 'crosshair', 'position': 'relative', 'display': 'block' });
                    }
                    if (a.parent().css('position') != 'absolute') {
                        a.parent().css('position', 'relative');
                    }
                    else {
                    }
                    if ($.browser.safari || $.browser.opera) {
                        $(img).css({ position: 'absolute', top: '0px', left: '0px' });
                    }
                    smallimagedata.w = $(this).width();
                    smallimagedata.h = $(this).height();
                    smallimagedata.h = $(this).height();
                    smallimagedata.pos = $(this).offset();
                    smallimagedata.pos.l = $(this).offset().left;
                    smallimagedata.pos.t = $(this).offset().top;
                    smallimagedata.pos.r = smallimagedata.w + smallimagedata.pos.l;
                    smallimagedata.pos.b = smallimagedata.h + smallimagedata.pos.t;
                    a.height(smallimagedata.h);
                    a.width(smallimagedata.w);
                    if (settings.preloadImages) {
                        largeimage.loadimage();
                    }
                };
                return this;
            };
            function Lens() {
                this.node = document.createElement("div");
                $(this.node).addClass('jqZoomPup');
                this.node.onerror = function() {
                    $(lens.node).remove();
                    lens = new Lens();
                    lens.activate();
                };
                this.loadlens = function() {
                    switch (settings.zoomType) {
                        case 'reverse':
                            this.image = new Image();
                            this.image.src = smallimage.node.src;
                            this.node.appendChild(this.image);
                            $(this.node).css({ 'opacity': 1 });
                            break;
                        case 'innerzoom':
                            this.image = new Image();
                            this.image.src = largeimage.node.src;
                            this.node.appendChild(this.image);
                            $(this.node).css({ 'opacity': 1 });
                            break
                        default:
                            break;
                    }
                    switch (settings.zoomType) {
                        case 'innerzoom':
                            lensdata.w = smallimagedata.w;
                            lensdata.h = smallimagedata.h;
                            break;
                        default:
                            if (isH) {
                                lensdata.w = (settings.zoomWidth) / (scale.x * 1.24);
                                lensdata.h = (settings.zoomHeight) / (scale.y * 0.84);
                            }
                            else {
                                lensdata.w = (settings.zoomWidth) / (scale.x * 1);
                                lensdata.h = (settings.zoomHeight) / (scale.y * 1.16);
                            }
                            break;
                    }
                    $(this.node).css({
                        "background-color": "#FFFFFF",
                        filter: "Alpha(Opacity = 30)",
                        width: lensdata.w + 'px',
                        height: lensdata.h + 'px',
                        position: 'absolute',
                        display: 'none',
                        borderWidth: 1 + 'px'
                    });
                    a.append(this.node);
                }
                return this;
            };
            Lens.prototype.activate = function() {
                this.loadlens();
                switch (settings.zoomType) {
                    case 'reverse':
                        img.css({ 'opacity': settings.imageOpacity });
                        (settings.alwaysOn) ? lens.center() : lens.setposition(null);
                        a.bind('mousemove', function(e) {
                            mousepos.x = e.pageX;
                            mousepos.y = e.pageY;
                            lens.setposition(e);
                        });
                        break;
                    case 'innerzoom':
                        $(this.node).css({ top: 0, left: 0 });
                        if (settings.title) {
                            ZoomTitleObj.loadtitle();
                        }
                        largeimage.setcenter();
                        a.bind('mousemove', function(e) {
                            mousepos.x = e.pageX;
                            mousepos.y = e.pageY;
                            largeimage.setinner(e);
                        });
                        break;
                    default:
                        (settings.alwaysOn) ? lens.center() : lens.setposition(null);
                        $(a).bind('mousemove', function(e) {
                            mousepos.x = e.pageX;
                            mousepos.y = e.pageY;
                            lens.setposition(e);
                        });
                        break;
                }
                return this;
            };
            Lens.prototype.setposition = function(e) {
                if (e) {
                    mousepos.x = e.pageX;
                    mousepos.y = e.pageY;
                }
                if (firstime == 0) {
                    var lensleft = (smallimagedata.w) / 2 - (lensdata.w) / 2;
                    var lenstop = (smallimagedata.h) / 2 - (lensdata.h) / 2;
                    $('div.jqZoomPup').show()
                    if (settings.lens) {
                        this.node.style.visibility = 'visible';
                    }
                    else {
                        this.node.style.visibility = 'hidden';
                        $('div.jqZoomPup').hide();
                    }
                    firstime = 1;
                } else {
                    var lensleft = mousepos.x - smallimagedata.pos.l - (lensdata.w) / 2;
                    var lenstop = mousepos.y - smallimagedata.pos.t - (lensdata.h) / 2;
                }
                if (overleft()) {
                    lensleft = 0 + bleft;
                } else
                    if (overright()) {
                    if ($.browser.msie) {
                        lensleft = smallimagedata.w - lensdata.w + bleft + 1;
                    }
                    else {
                        lensleft = smallimagedata.w - lensdata.w + bleft - 1;
                    }
                }
                if (overtop()) {
                    lenstop = 0 + btop;
                } else
                    if (overbottom()) {
                    if ($.browser.msie) {
                        lenstop = smallimagedata.h - lensdata.h + btop + 1;
                    } else {
                        lenstop = smallimagedata.h - lensdata.h - 1 + btop;
                    }
                }
                lensleft = parseInt(lensleft);
                lenstop = parseInt(lenstop);
                $('div.jqZoomPup', a).css({ top: lenstop, left: lensleft });
                if (settings.zoomType == 'reverse') {
                    $('div.jqZoomPup img', a).css({ 'position': 'absolute', 'top': -(lenstop - btop + 1), 'left': -(lensleft - bleft + 1) });
                }
                this.node.style.left = lensleft + 'px';
                this.node.style.top = lenstop + 'px';
                largeimage.setposition();
                function overleft() {
                    return mousepos.x - (lensdata.w + 2 * 1) / 2 - bleft < smallimagedata.pos.l;
                }
                function overright() {
                    return mousepos.x + (lensdata.w + 2 * 1) / 2 > smallimagedata.pos.r + bleft;
                }
                function overtop() {
                    return mousepos.y - (lensdata.h + 2 * 1) / 2 - btop < smallimagedata.pos.t;
                }
                function overbottom() {
                    return mousepos.y + (lensdata.h + 2 * 1) / 2 > smallimagedata.pos.b + btop;
                }
                return this;
            };
            Lens.prototype.center = function() {
                $('div.jqZoomPup', a).css('display', 'none');
                var lensleft = (smallimagedata.w) / 2 - (lensdata.w) / 2;
                var lenstop = (smallimagedata.h) / 2 - (lensdata.h) / 2;
                this.node.style.left = lensleft + 'px';
                this.node.style.top = lenstop + 'px';
                $('div.jqZoomPup', a).css({ top: lenstop, left: lensleft });
                if (settings.zoomType == 'reverse') {
                    $('div.jqZoomPup img', a).css({ 'position': 'absolute', 'top': -(lenstop - btop + 1), 'left': -(lensleft - bleft + 1) });
                }
                largeimage.setposition();
                if ($.browser.msie) {
                    $('div.jqZoomPup', a).show();
                } else {
                    setTimeout(function() { $('div.jqZoomPup').fadeIn('fast'); }, 10);
                }
            };
            Lens.prototype.getoffset = function() {
                var o = {};
                o.left = parseInt(this.node.style.left);
                o.top = parseInt(this.node.style.top);
                return o;
            };
            Lens.prototype.remove = function() {
                if (settings.zoomType == 'innerzoom') {
                    $('div.jqZoomPup', a).fadeOut('fast', function() { $(this).remove(); });
                } else {
                    $('div.jqZoomPup', a).remove();
                }
            };
            Lens.prototype.findborder = function() {
                var bordertop = '';
                bordertop = $('div.jqZoomPup').css('borderTop');
                lensbtop = '';
                var borderleft = '';
                borderleft = $('div.jqZoomPup').css('borderLeft');
                lensbleft = '';
                if ($.browser.msie) {
                    var temp = bordertop.split(' ');
                    bordertop = temp[1];
                    var temp = borderleft.split(' ');
                    borderleft = temp[1];
                }
                if (bordertop) {
                    for (i = 0; i < 3; i++) {
                        var x = [];
                        x = bordertop.substr(i, 1);
                        if (isNaN(x) == false) {
                            lensbtop = lensbtop + '' + bordertop.substr(i, 1);
                        } else {
                            break;
                        }
                    }
                }
                if (borderleft) {
                    for (i = 0; i < 3; i++) {
                        if (!isNaN(borderleft.substr(i, 1))) {
                            lensbleft = lensbleft + borderleft.substr(i, 1)
                        } else {
                            break;
                        }
                    }
                }
                lensbtop = (lensbtop.length > 0) ? eval(lensbtop) : 0;
                lensbleft = (lensbleft.length > 0) ? eval(lensbleft) : 0;
            }
            function Largeimage(url) {
                this.url = url;
                this.node = new Image();
                this.loadimage = function() {
                    if (!this.node)
                        this.node = new Image();
                    this.node.style.position = 'absolute';
                    this.node.style.display = 'none';
                    this.node.style.left = '-5000px';
                    this.node.style.top = '10px';
                    document.body.appendChild(this.node);
                    this.node.src = this.url;
                }
                this.node.onload = function() {
                    this.style.display = 'block';
                    var w = Math.round($(this).width());
                    var h = Math.round($(this).height());
                    this.style.display = 'none';
                    scale.x = (w / smallimagedata.w);
                    scale.y = (h / smallimagedata.h);
                    if ($('div.preload').length > 0) {
                        $('div.preload').remove();
                    }
                    largeimageloaded = true;
                    if (settings.zoomType != 'innerzoom' && running) {
                        stage = new Stage();
                        stage.activate();
                    }
                    if (running) {
                        lens = new Lens();
                        lens.activate();
                    }
                    if ($('div.preload').length > 0) {
                        alert(w / smallimagedata.w);
                        $('div.preload').remove();
                    }
                }
                return this;
            }
            Largeimage.prototype.setposition = function() {
                if (isH) {
                    this.node.style.left = Math.ceil(-scale.x / 1.16 * parseInt(lens.getoffset().left) + bleft) + 'px';
                    this.node.style.top = Math.ceil(-scale.y / 0.92 * parseInt(lens.getoffset().top) + btop) + 'px';
                }
                else {
                    this.node.style.left = Math.ceil(-scale.x / 1 * parseInt(lens.getoffset().left) + bleft) + 'px';
                    this.node.style.top = Math.ceil(-scale.y / 1.16 * parseInt(lens.getoffset().top) + btop) + 'px';
                }
            };
            Largeimage.prototype.setinner = function(e) {
                this.node.style.left = Math.ceil(-scale.x * Math.abs(e.pageX - smallimagedata.pos.l)) + 'px';
                this.node.style.top = Math.ceil(-scale.y * Math.abs(e.pageY - smallimagedata.pos.t)) + 'px';
                $('div.jqZoomPup img', a).css({ 'position': 'absolute', 'top': this.node.style.top, 'left': this.node.style.left });
            };
            Largeimage.prototype.setcenter = function() {
                this.node.style.left = Math.ceil(-scale.x * Math.abs((smallimagedata.w) / 2)) + 'px';
                this.node.style.top = Math.ceil(-scale.y * Math.abs((smallimagedata.h) / 2)) + 'px';
                $('div.jqZoomPup img', a).css({ 'position': 'absolute', 'top': this.node.style.top, 'left': this.node.style.left });
            };
            function Stage() {
                var leftpos = smallimagedata.pos.l;
                var toppos = smallimagedata.pos.t;
                this.node = document.createElement("div");
                $(this.node).addClass('jqZoomWindow');
                $(this.node)
				.css({
				    position: 'absolute',
				    width: Math.round(settings.zoomWidth) + 'px',
				    height: Math.round(settings.zoomHeight) + 'px',
				    display: 'none',
				    zIndex: 10000,
				    overflow: 'hidden'
				});
                var ie6 = $.browser.msie && /MSIE 6.0/.test(navigator.userAgent);
                this.node.style.left = bigPXoffset + 'px';
                this.node.style.top = toppos + 'px';
                if ($.browser.msie) {
                    if (ie6) {
                        if (!isH)
                            this.node.style.left = (bigPXoffset - 2) + 'px';
                    }
                    this.node.style.top = (toppos -1) + 'px';
                }
                return this;
            }
            Stage.prototype.activate = function() {
                if (!this.node.firstChild)
                    this.node.appendChild(largeimage.node);
                if (settings.title) {
                    ZoomTitleObj.loadtitle();
                }
                document.body.appendChild(this.node);
                switch (settings.showEffect) {
                    case 'show':
                        $(this.node).show();
                        break;
                    case 'fadein':
                        $(this.node).fadeIn(settings.fadeinSpeed);
                        break;
                    default:
                        $(this.node).show();
                        break;
                }
                $(this.node).show();
                if ($.browser.msie && $.browser.version < 7) {
                    this.ieframe = $('<iframe class="zoom_ieframe" frameborder="0" src="#"></iframe>')
	          .css({ position: "absolute", left: this.node.style.left, top: this.node.style.top, zIndex: 99, width: settings.zoomWidth, height: settings.zoomHeight })
	          .insertBefore(this.node);
                };
                largeimage.node.style.display = 'block';
            }
            Stage.prototype.remove = function() {
                switch (settings.hideEffect) {
                    case 'hide':
                        $('.jqZoomWindow').remove();
                        break;
                    case 'fadeout':
                        $('.jqZoomWindow').fadeOut(settings.fadeoutSpeed);
                        break;
                    default:
                        $('.jqZoomWindow').remove();
                        break;
                }
            }
            function zoomTitle() {
                this.node = jQuery('<div />')
				.addClass('jqZoomTitle')
				.html('' + ZoomTitle + '');
                this.loadtitle = function() {
                    if (settings.zoomType == 'innerzoom') {
                        $(this.node)
					.css({ position: 'absolute',
					    top: smallimagedata.pos.b + 3,
					    left: (smallimagedata.pos.l + 1),
					    width: smallimagedata.w
					})
					.appendTo('body');
                    } else {
                        $(this.node).appendTo(stage.node);
                    }
                };
            }
            zoomTitle.prototype.remove = function() {
                $('.jqZoomTitle').remove();
            }
        });
    }
})(jQuery);
	function trim(stringa) {
	    if (stringa == null || stringa.length<=0) return "";
	    while (stringa.substring(0,1) == ' '){
	        stringa = stringa.substring(1, stringa.length);
	    }
	    while (stringa.substring(stringa.length-1, stringa.length) == ' '){
	        stringa = stringa.substring(0,stringa.length-1);
	    }
	    return stringa;
	}