网页调用文件另存为js

<a id="downLoad" onclick="oDownLoad('downLoad')">下载</a>
<input type="hidden" name="fgycompany.fileUrl" value="地址" />

<script>
function oDownLoad(obj) {
alert("dd");
var odownLoad = document.getElementById(obj);
var url = $(odownLoad).siblings("input[name='fgycompany.fileUrl']").val();
//取得浏览器的userAgent字符串
var userAgent = navigator.userAgent;
//浏览器类型
var chromeType = "";
var isOpera = userAgent.indexOf("Opera") > -1;
//判断是否Opera浏览器
if (isOpera) {
chromeType = "Opera"
};
//判断是否Firefox浏览器
if (userAgent.indexOf("Firefox") > -1) {
chromeType = "FF";
}
if (userAgent.indexOf("Chrome") > -1) {
chromeType = "Chrome";
}
//判断是否Safari浏览器
if (userAgent.indexOf("Safari") > -1) {
chromeType = "Safari";
}
//判断是否IE浏览器
if (userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera) {
chromeType = "IE";
};
//判断是否Edge浏览器
if (userAgent.indexOf("Trident") > -1) {
chromeType = "Edge";
}
if (chromeType === "IE" || chromeType === "Edge") {
//IE、Edge
odownLoad.href = "#";
var oImg = document.createElement("img");
oImg.src = url;
oImg.id = "downImg";
var odown = document.getElementById("down");
odown.appendChild(oImg);
var oPop = window.open(document.getElementById('downImg').src, "", "width=1, height=1, top=5000, left=5000");
for (; oPop.document.readyState != "complete";) {
if (oPop.document.readyState == "complete") break;
}
oPop.document.execCommand("SaveAs");
oPop.close();
} else {
//!IE、Edge
odownLoad.href = url;
odownLoad.download = "";
}
}
</script>

var save_link = document.createElementNS("http://www.w3.org/1999/xhtml", "a");
//地址
save_link.href = "/fonts/glyphicons-halflings-regular.svg";
save_link.download = name;
var ev = document.createEvent("MouseEvents");
ev.initMouseEvent(
"click", true, false, window, 0, 0, 0, 0, 0
, false, false, false, false, 0, null
);
save_link.dispatchEvent(ev);