//执行CRUD之前的gridPanel
foodEmbranchmentHandler : function() {
		var centerPanel = Ext.getCmp("centerPanel");
		var me = this;
		var url = 'http://localhost:8080/admin-web/jsonservice/foodEmbranchmentService.json';

		if (Ext.getCmp("EmbranchmentGridPanel") == null) {
			var gridPanel = Ext.create('foodmis.view.embranchment.EmbranchmentGridPanel');
			var store = gridPanel.getStore();
			centerPanel.add(gridPanel);
			me.sendRequest(store, url);
		}
		centerPanel.setActiveTab(Ext.getCmp("EmbranchmentGridPanel"));
	}

queryButtonHandler : function() {
						var queryWindow = Ext.create(
								'foodmis.view.EmbranchmentQueryWindow', {
									title : '查询',
									id : 'EmbranchmentQueryWindow'
								}).show();
						// var formPanel =
						// queryWindow.getComponent("FoodEmbranchmentQueryForm");
						// formPanel.loadRecord(lastSelected);
					},
					updateButtonHandler : function() {
						var sm = this.getSelectionModel();
						var lastSelected = sm.getLastSelected();
						if (lastSelected != null) {
							var editorWindow = Ext.create(
									'foodmis.view.EmbranchmentEditorWindow', {
										title : '修改',
										id : 'EmbranchmentEditorWindow'
									}).show();
							var formPanel = editorWindow
									.getComponent("EmbranchmentEditorForm");
							formPanel.loadRecord(lastSelected);
						} else {
							Ext.MessageBox.alert("注意", "请选择一个要修改的数据！");
						}
					},
					addButtonHandler : function() {
						var addWindow = Ext.create(
								'foodmis.view.EmbranchmentAddWindow', {
									title : '添加',
									id : 'EmbranchmentAddWindow'
								}).show();
						var formPanel = addWindow
								.getComponent("EmbranchmentAddForm");
						var newModel = Ext.ModelManager.create({},
								'foodmis.model.EmbranchmentModel');
						formPanel.loadRecord(newModel);
					},
					deleteButtonHandler : function() {
						var sm = this.getSelectionModel();
						var lastSelected = sm.getLastSelected();
						var gridPanel = Ext.getCmp('EmbranchmentGridPanel');
						var gridStore = gridPanel.getStore();
						if (lastSelected != null) {
							Ext.Ajax
									.request({
										url : 'http://localhost:8080/admin-web/jsonservice/foodEmbranchmentService.json',
										method : 'POST',
										jsonData : {
											jsonrpc : "2.0",
											id : 10,
											method : "delete",
											parameters : [ lastSelected
													.get("embranchmentId") ]
										},
										success : function(result, request) {
											gridStore.remove(lastSelected);
											Ext.MessageBox.alert("提示",
													result.responseText);
										},
										failure : function(form, action) {
											Ext.MessageBox.alert("提示", "请求失败！");
										}
									});
						} else {
							Ext.MessageBox.alert("注意", "请选择一个要删除的数据！");
						}
					},
					refreshButtonHandler : function() {
						this.store.reload();
						// gridPanel.getView().refresh();
					}

//Ext.ux.ImageButton.js文件源码

Ext.namespace('Ext.ux');
Ext.ux.ImageButton = function(cfg) {
	Ext.ux.ImageButton.superclass.constructor.call(this, cfg);
};
Ext.extend(Ext.ux.ImageButton, Ext.Button, {
	onRender : function(ct, position) {
		this.disabledImgPath = this.disabledImgPath || this.imgPath;
		var tplHTML = '<div><img src="{imgPath}" border="0" width="{imgWidth}" height="{imgHeight}" alt="{tooltip}" style="cursor: {cursor};"/> {imgText:htmlEncode}<br/><br/></div>';
		var tpl = new Ext.Template(tplHTML);
		var btn, targs = {
			imgPath : this.disabled ? this.disabledImgPath : this.imgPath,
			imgWidth : this.imgWidth || "",
			imgHeight : this.imgHeight || "",
			imgText : this.text || "",
			cursor : this.disabled ? "default" : "pointer",
			tooltip : this.tooltip || ""
		};
		btn = tpl.append(ct, targs, true);
		btn.on("click", this.onClick, this);
		if (this.cls) {
			btn.addClass(this.cls);
		}
		this.el = btn;
		if (this.hidden) {
			this.hide();
		}
	},
	disable : function(newImgPath) {
		var replaceImgPath = newImgPath || this.disabledImgPath;
		if (replaceImgPath)
			this.el.dom.firstChild.src = replaceImgPath;
		this.disabled = true;
	},
	enable : function(newImgPath) {
		var replaceImgPath = newImgPath || this.imgPath;
		if (replaceImgPath)
			this.el.dom.firstChild.src = replaceImgPath;
		this.disabled = false;
	}
});
Ext.reg('imagebutton', Ext.ux.ImageButton);
 },
 disable : function(newImgPath) {
  var replaceImgPath = newImgPath || this.disabledImgPath;
  if (replaceImgPath)
   this.el.dom.firstChild.src = replaceImgPath;
  this.disabled = true;
 },
 enable : function(newImgPath) {
  var replaceImgPath = newImgPath || this.imgPath;
  if (replaceImgPath)
   this.el.dom.firstChild.src = replaceImgPath;
  this.disabled = false;
 }
});
Ext.reg('imagebutton', Ext.ux.ImageButton);

//调用方法：

var myImageButton=new Ext.ux.ImageButton({
            imgPath : 'images/test.gif,
            imgWidth : 60,
            imgHeight : 60,
            tooltip  : 'test',//鼠标放上去的提示
            handler : function(btn) {
                 Ext.MessageBox.alert(''test',''test'');
                }
             });