How to set a cookie to expire in 1 hour in Javascript? -

How to set this cookie to end in one hour from the current time:

  Document .cookie = 'username =' + value; + 'Ends' =' What's going on here ?; + 'Path = /';  

code:

 < Code> var now = new date (); Var time = now.getTime (); Time + = 3600 * 1000; Now.setTime (time); Document.cookie = 'username =' + value + '; Ends = '+ now Broken string () + '; Path = / ';