新增加的html里的id,js获取不到id

 if(flag==0){
                var p = document.createElement("p");
                 var text_p = document.createTextNode("还没有账号0?");
                 p.setAttribute("class","p-rj");
                 p.setAttribute("id","prj");
                 p.appendChild(text_p);
                   var a = document.createElement("a");
                   var text_a = document.createTextNode("注册0");
                     a.setAttribute("href","javascript:void(0);");  
                     a.setAttribute("class","drop_col");
                     a.setAttribute("id","register");
                     a.setAttribute("onclick","rjSecond()");
                     a.appendChild(text_a);
                  p.appendChild(a);
                    $("boss").appendChild(p); }//改了增加HTML内容之后。发现还是没法获得id,我就设置了属性onclick最后bug解决
                flag=1; 

.....

                       /* $("register").onclick=function(){ 之前用的这个方式,但是没办法获id的值register  ,不知道为什么新增加的HTML里的,已经形成页面,但是再次点击这个绑定事件的标签时,id没法获取到。*/
  function rjSecond()
      { var table = document.getElementsByTagName("table")[0];
        var form = table.parentNode;
        form.removeChild(table)
        if(flag!=0){
          var div = $("submit-div");
         form.removeChild(div);
        ........
        

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转载自www.cnblogs.com/hyjh/p/11258629.html