I'm new here and I'm creating a app to control my products costs.

I create a new page with my product list, I need to create a link for each product send to information page, this information page will show me all information for this specific item.

I'm sending ID_product for URL 

https://app.zohocreator.com/ricardo289/custo-produtos/#Page:PG_Custo_do_produto?VarID=1

Now I need to filter all details using this VarID , how can I set a variable with this information ??

like: 

VarID = ????? (URL variable)

x = Products_Form[ID == VarID]

<%=x.Product_name%>

PS: I'm learning zoho creator, I have nio experience with this language.

Thanks