insertAfter函数
1 //自己做的insertAfter函数,类似于DOM提供的insertBefore()
2 function insertAfter(newElement , targetElement){
3 var parent = targetElement.parentNode;
4 if(parentNode.lastChild == targetElement){
5 parent.appendChild(newElement);
6 }
7 else{
8 parent.insertBefore(newElement , targetElement.nextSibling);
9 }
10 }
2 function insertAfter(newElement , targetElement){
3 var parent = targetElement.parentNode;
4 if(parentNode.lastChild == targetElement){
5 parent.appendChild(newElement);
6 }
7 else{
8 parent.insertBefore(newElement , targetElement.nextSibling);
9 }
10 }