getAttribute cannot return class in IE7?

Question

I need to find random nodes according to random attribute values. To do that I use getAtrribute on nodes from getElementsByTagName.

It seems like when I look for cl

Answer 1

Here you can get and set the class attribute with cross browser compatibility.

      //also works with IE7 and below

      //get class attribute value
      var class_name = document.getElementById('elem_id').className;

      //set class attribute
      document.getElementById('elem_id').className  = 'new-class-name';