In the last post, Creating and Manipulating Modal Popups, I discussed what the JavaScript method showModalDialog is used for and how to implement it in your website. Part two of this topic will focus on using popups to manipulate data and pass information from the child page back to the parent. User Experience ... Manipulating data in the popup window can be tricky, because modal windows do not function like normal ones. In a normal window, when your page does a postback, the postback is rendered...