My first bookmarklet!

date_bookmarklet.js

javascript: (function(){
  var today = new Date();
  var day = today.getDate();
  var month = today.getMonth() + 1; 
  /* January starts with zero */
  
  var year  = today.getFullYear();
  var thisDate = month + '/' + day + '/' + year;
  alert(thisDate);
  /* Trying to write to the document is actually unneccessarily complicated. document.write(thisDate)*/
}());
/* I previously used the other comment style, which broke the bookmarklet */