js解析html字符串

var html = '    
  
sandong_R
  
  
fid
    
TYPE_USER
    
USER_SUBTY
    
NAME
  
    
  
sandong_R.14
          
100
      
100
      
枣庄市
  
  ';  


var el = document.createElement( 'div' );
el.innerHTML = html;
var tds = el.getElementsByTagName('td');
var text = tds[3].innerHTML;
alert(text);//枣庄市