javaScript判断网页加载完再执行或显示页面内容

javascript判断网页加载完再执行或显示页面内容

javascript实现代码：

    <script type="text/javascript">
        document.onreadystatechange = function(){
            if(document.readyState == "complete"){
                document.getElementById("jsteam").style.display="block";
            }
        }
    </script>

document.onreadystatechange = function(){

if(document.readyState == "complete"){

document.getElementById("jsteam").style.display="block";

}

</script>

jQuery实现代码：

    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>jQuery在页面加载完成时执行函数</title>
    <script src="http://libs.baidu.com/jquery/1.9.0/jquery.min.js"></script>
    </head>
    <body>
    <script type="text/javascript">
    $(document).ready(function(){
    alert("ready() 加载完成！！");
    });
    </script>
    </body>
    </html>