let grid = new w2grid({

    name    : 'grid',

    header  : 'Grid Header',

    show : {

        header : true

    },

    columnTooltip: 'bottom',

    columns: [

        { field: 'recid', text: 'ID', size: '50px', tooltip: 'This is a column tooltip' },

        { field: 'lname', text: 'Last Name', size: '30%', tooltip: 'This is another column tooltip' },

        { field: 'fname', text: 'First Name', size: '30%', tooltip: 'Tooltip <i>with</i> <b>some</b> HTML tags' },

        { field: 'email', text: 'Email', size: '40%', tooltip: 'You get the idea' },

        { field: 'sdate', text: 'Start Date', size: '120px' },

        { field: 'sdate', text: 'End Date', size: '120px' }

    ]

});

​

grid.columnTooltip = 'right|left';

grid.refresh();

​