Hide the Hierarchy sign in the workbook

Hi All,

I built a workbook with 15 tabs based on 6 queries at different drilldown levels.

Now I need to hide the hierarchy sign that appears on the worksheet so that the user can not click and expand them.

I searched thru SDN and found that we can do this on page load and page refresh . But I have no idea about the code and where I should place the code.

Can anyone help me with this?

Thanks

Sri