列出一个节点的所有父节点
1 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 2 <html xmlns="http://www.w3.org/1999/xhtml"> 3 <head> 4 <meta name="generator" content="editplus" /> 5 <meta name="author" content="" /> 6 <meta name="keywords" content="" /> 7 <meta name="description" content="" /> 8 <script type="text/javascript"> 9 10 //列出一个节点的所有父节点 11 window.onload = function(){ 12 var span = document.getElementsByTagName('span')[0]; 13 alert(getAllParents(span)); 14 //alert(span.parentNode); 15 } 16 function getAllParents(obj){ 17 var parents = []; 18 var parent = obj.parentNode; 19 if(parent){ 20 parents.push(parent); 21 return parents.concat(arguments.callee(parent)); 22 } 23 return parents; 24 } 25 </script> 26 </head> 27 <body> 28 <div> 29 <div> 30 <div> 31 <span></span> 32 </div> 33 </div> 34 </div> 35 </body> 36 </html>