How can I default a value in the textbox of a toolbar

[lsl]

I have a toolbar as follows,

 obj.toolbar= {items: [
          { type: '<span> Freight Payable at </span>' }
          ,{ type: 'textbox', cls: "xpayableat" }
        ]};


How can I default a value in the textbox?

[paramvir]

it can be done with attr property.

{ type: 'textbox', cls: "xpayableat", attr: "value='Hello'" }