images

jQuery.fn.extend({    uploadPreview: function (opts) {        var _self = this,                _this = $(this);        opts = jQuery.extend({            preDiv: 'preview',            Img: "imgPre",            Width: 80,            Height: 80,            ImgType: ["gif", "jpeg", "jpg", "bmp", "png"],            Callback: function () { }        }, opts || {});        _self.getObjectURL = function (file) {            var url = null;            if (window.createObjectURL != undefined) {                url = window.createObjectURL(file)            } else if (window.URL != undefined) {                url = window.URL.createObjectURL(file)            } else if (window.webkitURL != undefined) {                url = window.webkitURL.createObjectURL(file)            }            return url        };        _self.show = function () {            $(".upload_tips").css('color', '#fff');            $(".change_mask").css('display', 'block');        }        _this.change(function () {            if (this.value) {                if (!RegExp("\.(" + opts.ImgType.join("|") + ")$", "i").test(this.value.toLowerCase())) {                    alert("选择文件错误,图片类型必须是" + opts.ImgType.join("，") + "中的一种");                    this.value = "";                    return false                }                if (/msie/.test(navigator.userAgent.toLowerCase())) {                    try {                        //$("#" + opts.Img).attr('src', _self.getObjectURL(this.files[0]))                        _self.show();                        $("#" + opts.preDiv).css('backgroundImage', 'url:(' + _self.getObjectURL(this.files[0]) + ')');                    } catch (e) {                        var src = "";                        var obj = $("#" + opts.Img);                        var div = obj.parent("div")[0];                        _self.select();                        if (top != self) {                            window.parent.document.body.focus()                        } else {                            _self.blur();                        }                        src = document.selection.createRange().text;                        document.selection.empty();                        obj.hide();                        obj.parent("div").css({                            'filter': 'progid:DXImageTransform.Microsoft.AlphaImageLoader(sizingMethod=scale)',                            'width': opts.Width + 'px',                            'height': opts.Height + 'px'                        });                        _self.show();                        div.filters.item("DXImageTransform.Microsoft.AlphaImageLoader").src = src;                    }                } else {                    // _self.show();                    $("#" + opts.Img).css('display', 'block');                    $("#" + opts.Img).attr('src', _self.getObjectURL(this.files[0]));                    //$("#" + opts.preDiv).css('background-image', 'url:('+_self.getObjectURL(this.files[0])+')');                    //$("#" + opts.preDiv).css('background-image', _self.getObjectURL(this.files[0]));                }                opts.Callback();            }        })    }});