var divs = document.getElementsByTagName('div'),
    op = document.getElementsByTagName('output')[0],
    i, j;

for (i = 0; i < divs.length; i++) { 

  if (divs[i].hasAttributes()) {
    op.innerHTML += '<p><b>Element #' + 
                    (i + 1) + 
                    ' has the following' +
                    ' attribute/value pairs:</b>';
    for (j = 0; j < divs[i].attributes.length; j++) {
      op.innerHTML += divs[i].attributes[j].name + 
                      ': ' +  divs[i].attributes[j].value + 
                      '<br />';
    }
    op.innerHTML += '</p>';

  } else {
    op.innerHTML += '<p><b>Element #' + 
                    (i + 1) + 
                    ' has no attributes.</b>';
  }
}