function filechange(e) {

				var file = $('#filed').get(0).files[0];

				var fileSize = file.size,

					fileType = file.type;

				if (file.name.lastIndexOf('.') == -1) {

					$.dialog({

						content: '路径不正确',

						time: 2000

					});

					return false;

				}

				var AllImgExt = ".jpg|.jpeg|.gif|.bmp|.png|.swf|";

				var extName = file.name.substring(file.name.lastIndexOf(".")).toLowerCase();

				if (AllImgExt.indexOf(extName + "|") == -1) {

					$.dialog({

						content: '非法图片格式',

						time: 2000

					});

					return false;

				}

				if (fileSize < 3145728) {

					if (window.FileReader) {

						var reader = new FileReader();

						reader.readAsBinaryString(file);

						reader.onload = function(e) {

							var formData = new FormData();

							formData.append("imgs", file);

							$.ajax({

								url: "",//后台地址

								type: 'post',

								contentType: "multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW",//格式转换为binary

								data: formData,

								processData: false, // 使数据不做处理

								contentType: false,

								dataType: 'json',

								success: function(d) {

								}

							})

						}

					}

				} else {

					$.dialog({

						content: '图片大小超过限制',

						time: 2000

					});

					return false;

				}

			}