}else if(c && !this.isValidParent(c, target)){
var container = this.getNextCell(c);
container.insertBefore(c.getPositionEl().dom, null);
c.container = Ext.get(container);
}else if(c && !this.isValidParent(c, target)){
var container = this.getNextCell(c);
container.insertBefore(c.getPositionEl().dom, null);
c.container = Ext.get(container);