In firefox, make Javascript.new like Ruby.new
Object.prototype['new']=function(){
    var params=[];
    var argc=arguments.length;
    for(var i=0;i<argc;i++){
        params.push('arguments['+i+']');
    }
    var code='return new this('+params.join(',')+');';
    return new Function(code).apply(this,arguments);
}

{
layout:"border",
items:[{
    region:"center"
},{
    region:"north",
    tbar:[{
        text:"reset"
      },{
        text:"showall"
      }],
    title:"gui builder"
},{
   

Ext.getBody().update('');
new Ext.TabPanel({renderTo:Ext.getBody(),
items:[{title:'demo',html:'content'},{title:'trend',autoLoad:{url:'/admin/domains/trend'}}],
autoHeight:true,
activeItem:1
});

Ext.get(document.body).update('<div id="test"></div>');
var tree=new Ext.tree.TreePanel({
    renderTo: 'test',
    width: '200px',
    title: 'My Title',  
    collapsible: true,
    root:new Ext.tree.AsyncTreeNode({text:'dd',children:[{text:'qq',leaf:true}]})
});

tree.render();
tree.expandAll();
--other--
http://extjs.com/lea

sudo apt-get install postfix
--------------------------------------
<?php
mail('fakename@gmail.com','subject','message');
?>
-----------------------------------------
postdrop: warning: unable to look up public/pickup: No such file or directory
----------------------------------------
sudo mkfifo /var/spool/postfix/public/pickup
sudo /etc/init.d/postfix restart

feel->think->action