83798 Simple Code Needed - 2 minutes

I need a code to get information from a URL. I need to pull the information from the address bar into the page. I am editing an image tage with the info. It needs to be pulled into the image tag as the page is created. I know it is simple if you know what you are doing but I don't. I am sure it is just how I write the image tag. I attached a text file with an example. I need this tonight.