js动态加载以及确定加载完成的代码_javascript技巧

var otherJScipt = document.createElement("script");
otherJScipt = document.createElement("script");
otherJScipt.setAttribute("type", "text/javascript");
otherJScipt.setAttribute("src", "/xxx.js");
document.getElementsByTagName("head")[0].appendChild(otherJScipt);//追加到head标签内


//判断服务器
if (navigator.userAgent.indexOf("IE") >= 0) {
//IE下的事件
otherJScipt.onreadystatechange = function () {
//IE下的判断，判断是否加载完成
if (otherJScipt && (otherJScipt.readyState == "loaded" || otherJScipt.readyState == "complete")) {
otherJScipt.onreadystatechange = null;
callMyFun();
}
};
}
else {
otherJScipt.onload = function () {
otherJScipt.onload = null;
callMyFun();
};
}