ExtJS toolbar paging event parameters

For example, when loading the first page
Code:
Copy codeThe Code is as follows:
Store. load ({params: {start: 0, limit: pageSize, Keyword: Ext. getCmp ('input _ name'). getValue ()}});

When you click the next page (Previous Page), parameters are included.
Copy codeThe Code is as follows:
DoLoad: function (start ){
Record_start = start;
Var o ={}, pn = this. paramNames;
O [pn. start] = start;
O [pn. limit] = this. pageSize;
Var Keyword = Ext. getCmp ('input _ name'). getValue (); // get the Parameter
O ['keyword'] = Keyword; // write Parameters
This. store. load ({params: o}); // load
}