Wow this seems pretty messed up:
I noticed that the content parameter passed through this function completely gets ignored on your server and overwritten with the meta description. So I edited the function to not even pass the c parameter in first place, but that causes the description in the meta tage to not get retrieved. You see in the function below, I'm just passing a zero to the c parameter and now it retrieves the meta description again.
var targetUrl = 'http://www.myspace.com/index.cfm?fuseaction=postto&c=0&t=' + encodeURIComponent(T)
+ '&u=' + encodeURIComponent(U);
window.open(targetUrl, 'ptm', 'height=450,width=440').focus();
Something doesnt seem sorted out...