var compare_dates = function(date1,date2){  
     if (date1>date2) return ("Date1 > Date2");  
   else if (date1<date2) return ("Date2 > Date1");  
   else return ("Date1 = Date2");   
  }  
  
console.log(compare_dates(new Date('11/14/2013 00:00'), new Date('11/14/2013 00:00')));  
console.log(compare_dates(new Date('11/14/2013 00:01'), new Date('11/14/2013 00:00')));  
console.log(compare_dates(new Date('11/14/2013 00:00'), new Date('11/14/2013 00:01'))); 