Disable text selection on blog with JavaScript

function disableSelection(a){if(typeof a.onselectstart!="undefined")a.onselectstart=function(){return false};else if(typeof a.style.MozUserSelect!="undefined")a.style.MozUserSelect="none";else a.onmousedown=function(){return false};a.style.cursor="default"}disableSelection(document.body);document.write('<a href="http://hi.techprevue.com/"><img src="//googledrive.com/host/0B3n4yhTjERBUTS1JeWtSRFJoa2c/copy_protected_blog.png" alt="Copy Protected Blog"></img></a>')