var fDesc=new Array(); fDesc[0] = "File hashes are used to verify the authenticity and integrity of files - especially those transmitted over the internet. When downloading a file from MSDN for instance, you are presented with the SHA-1 Hash - a list of seemingly random characters and numbers that are generated using the SHA-1 encryption algorithm to uniquely identify that file. If even a single bit of that file is changed, the hash itself will change. Most importantly, it is nearly impossible to create a different file that will produce the same hash, making spoofing unfeasable. But the question remains, how can I easily verify that hash against the file that I actually downloaded? This article will present a window shell extension that gives you easy access to the hash of any file quickly and easily."; function tShowHide(id, show) { var s = document.getElementById("desc"); if ((s.innerHTML.length<=212 || show==1) && show!=2) { s.innerHTML = fDesc[id]; if (document.getElementById('m1')) document.getElementById('m1').style.display='none'; if (document.getElementById('m2')) document.getElementById('m2').style.display='none'; if (document.getElementById('more_txt')) document.getElementById('more_txt').style.display='inline'; } else { s.innerHTML = ''; } }