{
      width:438,     height:440,     name:'loginDiv',     ui:'123',     x: '50%' ,     y: 200,     border:true,     bodyStyle:{
          'border':'#d3d3d3 1px solid',         'background-color':'#fff',         'border-radius':'2px'     } }

listeners:{
      resize : function() {
          //自动登陆框宽高         var loginDiv = this.down('[name=loginDiv]');         var footDiv = this.down('[name=footDiv]');         var windowX = Ext.getBody().getWidth();         var windowY = Ext.getBody().getHeight();         loginDiv.setX(windowX*0.5 - 219);         loginDiv.setY(windowY*0.5 - 220);         footDiv.setBodyStyle({
              'padding-left':(windowX*0.5 - 225) + "px"         })     } }