php使用post动态选择头像和js事件动态改变头像

    <meta http-equit="Content-type" c charset="utf-8">
    <title>动态选择头像logo</title>
    <script type="text/javascript">
        <span>function<span> check(obj){
            $("showImage").src = obj.<span>value;
        }
        <span>function<span> $(obj){
            <span>return document.<span>getElementById(obj);
        }
    </script>


<span>php
    </span><span>echo</span> '<img  src="'.<span>%24_POST</span>%5B'mylogo'%5D.'" alt="php使用post动态选择头像和js事件动态改变头像" >'<span>;
</span>?>
    <img  src="1.png" alt="php使用post动态选择头像和js事件动态改变头像" >
    <br>