var store = new Ext.data.Store({
        url     : 'http://mysite.ru/index.php',
        remoteSort: true,
	    reader: new Ext.data.JsonReader({
		root:'rows',
		totalProperty: 'total',
		id:'tid'
	}, tid,DeliveryType_id,Transaction_id)
});

var store = new Ext.data.JsonStore({
        root: 'topics',
        totalProperty: 'totalCount',
        idProperty: 'threadid',
        remoteSort: true,

        fields: [
            'title', 'forumtitle', 'forumid', 'author',
            {name: 'replycount', type: 'int'},
            {name: 'lastpost', mapping: 'lastpost', type: 'date', dateFormat: 'timestamp'},
            'lastposter', 'excerpt'
        ],

        // load using script tags for cross domain, if the data in on the same domain as
        // this page, an HttpProxy would be better
        proxy: new Ext.data.ScriptTagProxy({
            url: 'http://extjs.com/forum/topics-browse-remote.php'
        })
    });