(function($) { $.fn.imagezoom = function(options) { var settings = { xzoom: 600, yzoom: 400, offset: 10, position: "btr", preload: 1 }; if(options) { $.extend(settings, options); } var noalt = ''; var self = this; $(this).bind("mouseenter", function(ev) { var imageleft = $(this).offset().left; var imagetop = $(this).offset().top; var imagewidth = $(this).get(0).offsetwidth; var imageheight = $(this).get(0).offsetheight; var boxleft = $(this).parent().offset().left; var boxtop = $(this).parent().offset().top; var boxwidth = $(this).parent().width(); var boxheight = $(this).parent().height(); noalt = $(this).attr("alt"); var bigimage = $(this).attr("rel"); $(this).attr("alt", ''); if($("div.zoomdiv").get().length == 0) { $(document.body).append("
 
"); } if(settings.position == "btr") { if(boxleft + boxwidth + settings.offset + settings.xzoom > screen.width) { leftpos = boxleft - settings.offset - settings.xzoom; } else { leftpos = boxleft + boxwidth + settings.offset; } } else { leftpos = imageleft - settings.xzoom - settings.offset; if(leftpos < 0) { leftpos = imageleft + imagewidth + settings.offset; } } $("div.zoomdiv").css({ top: boxtop, left: leftpos }); $("div.zoomdiv").width(settings.xzoom); $("div.zoomdiv").height(settings.yzoom); $("div.zoomdiv").show(); $(this).css('cursor', 'crosshair'); $(document.body).mousemove(function(e) { mouse = new mouseevent(e); if(mouse.x < imageleft || mouse.x > imageleft + imagewidth || mouse.y < imagetop || mouse.y > imagetop + imageheight) { mouseoutimage(); return; } var bigwidth = $(".bigimg").get(0).offsetwidth; var bigheight = $(".bigimg").get(0).offsetheight; var scaley = 'x'; var scalex = 'y'; if(isnan(scalex) | isnan(scaley)) { var scalex = (bigwidth / imagewidth); var scaley = (bigheight / imageheight); $("div.zoommask").width((settings.xzoom) / scalex - 200); $("div.zoommask").height((settings.yzoom) / scaley - 100); $("div.zoommask").css('visibility', 'visible'); } xpos = mouse.x - $("div.zoommask").width() / 2; ypos = mouse.y - $("div.zoommask").height() / 2; xposs = mouse.x - $("div.zoommask").width() / 2 - imageleft; yposs = mouse.y - $("div.zoommask").height() / 2 - imagetop; xpos = (mouse.x - $("div.zoommask").width() / 2 < imageleft) ? imageleft : (mouse.x + $("div.zoommask").width() / 2 > imagewidth + imageleft) ? (imagewidth + imageleft - $("div.zoommask").width()) : xpos; ypos = (mouse.y - $("div.zoommask").height() / 2 < imagetop) ? imagetop : (mouse.y + $("div.zoommask").height() / 2 > imageheight + imagetop) ? (imageheight + imagetop - $("div.zoommask").height()) : ypos; $("div.zoommask").css({ top: ypos, left: xpos }); $("div.zoomdiv").get(0).scrollleft = xposs * scalex; $("div.zoomdiv").get(0).scrolltop = yposs * scaley; }); }); function mouseoutimage() { $(self).attr("alt", noalt); $(document.body).unbind("mousemove"); $("div.zoommask").remove(); $("div.zoomdiv").remove(); } count = 0; if(settings.preload) { $('body').append(""); $(this).each(function() { var imagetopreload = $(this).attr("rel"); var content = jquery('div.jqpreload' + count + '').html(); jquery('div.jqpreload' + count + '').html(content + ''); }); } } })(jquery); function mouseevent(e) { this.x = e.pagex; this.y = e.pagey; }