There isn’t a file at the SRC for your script. Therefore it doesn’t do anything.
https://blog.projectmates.com/projectmates/remotelogin/login2V.aspx?PageURL=//blog.projectmates.com/Index.aspx&Error=&noTitle=true&PmServer=//blog.projectmates.com
Script tags with a src load a file and execute it. Yours wont work because there’s no javascript at that URL.