ext.msg.alert is covered by <object> of panel `s html
i has a panel,panel`s html include a div,the div include a object,when call ext.msg.alert(),the alert dialog is covered by the object
take a look at the z-index of your object.
the debugging tools like firebug or the chrome developer tools are perfect for inspecting those elements and see what is going on.
Social Network Engine
i have set div and object's zindex,but of no use
i have set div and object's zindex,but of no use;after ext.msg.alert(),i call Ext.MessageBox.getDialog().getEl().setStyle('z-index', '80000') ,also of no use.