Ext.onReady(function() {
 var s;
 s=new System();
 Ext.get('imgs').hide();
 (function() {s.doLayout();Ext.get('imgs').show();}).defer(400);
});

var System = Ext.extend(Object, {
 constructor: function(cfg) {
  Ext.apply(this,cfg);
  var me=this;
  //var div = console.log(Ext.select('div'));

  window.onresize=function() {
   me.doLayout();
  };

  this.doLayout();
 },
 doLayout:function() {
  var w = Math.round((parseFloat(Ext.getBody().getWidth())-14.0)/2.0);

  Ext.get("bb_left").setWidth(w);
  Ext.get("bb_right").setWidth(w);

  console.log(Ext.get('pa').getTop());

  Ext.get('imgs').setTop(Ext.get('pa').getTop());
  Ext.each(Ext.query("div.img"),function(i) {
   Ext.get(i).hover(function(a,b) {Ext.get(i).first().setVisible(false);},function(a,b) {Ext.get(i).first().setVisible(1);});
  });
 }
});