Fetching remote data to tableview

Hi,

I have a tableview, a search bar and using search attribute in tableview to filter tableview rows. I want to take a step further and add a row afterwards for users to click to fetch more from the server given to search parameters.

var localSearchBar = Ti.UI.createSearchBar({
        showCancel: true,
            hintText: "Search Local List..."
    });     
    this.table = Ti.UI.createTableView({    // Table object that will be returned by this class
        search: localSearchBar,
            filterAttribute:"searchFilter"                          
    });

Thank You.