如何最好地从应用程序的另一部分“关闭”网页？

We have a web application that manages inventory for our computer support group. One of the things that we will be using this for is to drive a "Computers Currently In Use" map for our larger computer labs so that users can find an open computer more easily (the lab in our Main library has around 150 computers). The image used for the background of the display of this page is managed through the administrative part of the application as are the relationships between what stations are located in the lab and where they are located.We have a web application that manages inventor