js模拟form表单提交数据, js模拟a标签点击跳转，避开使用window.open引起来的浏览器阻止问题

/** 
* js模拟form表单提交  
* @param {object} 参数对象
*    url       必填  提交地址
*    methond   选填  默认post  提交方式  post  get
*    target    选填  默认_self  当前页面还是新页面   _self _blank
*              其它参数
*/
function jsFormSubmit(params) {
  var turnForm = document.createElement("form");
  //一定要加入到body中！！
  document.body.appendChild(turnForm);

      var method = params[‘methond‘] || "POST";	//默认为post
  turnForm.method = method;
  delete params[‘methond‘];

  var target = params[‘target‘] || "_self";	//默认为当前页面
  turnForm.target = target;
  delete params[‘target‘];

  var url = params.url; //提交地址
  turnForm.action = url;
  delete params[‘url‘];


  //创建隐藏表单
  for(var item in params){
    var newElement = document.createElement("input");
    newElement.setAttribute("type","hidden");
    newElement.setAttribute("name",item);
    newElement.setAttribute("value",params[item]);
    turnForm.appendChild(newElement);
  }

  turnForm.submit();
}

var params = {
    //必填参数
    "url":url,
    "methond":"post",
    "target":"_blank",
    //下边为要提交的数据
    "j_username":"SYNKMXS0000000043",
    "j_password":"3258"
}                  
formSubmit(params);

/** 
* js模拟a点击
* @param {string}  url       必填  提交地址
* @param {string}  target    选填  默认_self  当前页面还是新页面   _self _blank
*/
function jsALink(url,target) {
  var target = target || "_blank";
  //先读取alink 不存在则创建
  var alink = document.getElementById("alink");
  if(alink==undefined)  alink=document.createElement("a");
  //赋值
  alink.id = "alink";
  alink.href = url;
  alink.target = target;
  alink.style = "display: none;";
  //写入页面
  document.body.appendChild(alink);
  //执行点击事件
  document.getElementById("alink").click();
}  

jsALink("http://www.jsfun.cn","_blank");