优化ecshop小京东商品视频上传功能：突破100M限制

店铺添加视频上传

注意：视频上传和音频上传的格式一样，但一定要改js中的变量名，id和值的名，否则会冲突

1、在languages/zh_cn/admin/goods.php中插入 

$_LANG['tab_video'] = '视频上传';

2、在languages/zh_cn/common.php中插入

$_LANG['goods_video'] = '商品视频：'; 
 
3、在supplier/templates/goods_info.htm内
   第45行左右<div id="tabbar-div"><p>内添加：

    <span class="tab-back" id="video-tab">{$lang.tab_video}</span>

   第47行左右<div id="tabbody-div"><form enctype="multipart/form-data" action="" method="post" name="theForm" >
   内添加（最好在它内部的最后一个table之后）：
/************** 
<table width="90%" id="video-table" align="center" style="display:none;">    
        <tr>    
        <td>     
            <div  id="drop_area" style="border:3px solid red;width:200px; height:150px">      
                将将你所需上传视频拖拽到此即可      
            </div>      
              <input type="hidden" id="video_val" name="goods_video">    
            <progress value="0" max="10" id="prouploadfile"></progress>      
                  
            <span id="persent">0%</span>      

            <br />      
            <!--<button onclick="xhr2()">ajax上传</button>-->         
            <input type="button" onclick="stopup()" id="stop" value="上传">         
            <script>      
            //拖拽上传开始      
            //-1.禁止浏览器打开文件行为      
            document.addEventListener("drop",function(e){  //拖离       
                e.preventDefault();          
            })      
            document.addEventListener("dragleave",function(e){  //拖后放       
                e.preventDefault();          
            })      
            document.addEventListener("dragenter",function(e){  //拖进      
                e.preventDefault();          
            })      
            document.addEventListener("dragover",function(e){  //拖来拖去        
                e.preventDefault();          
            })      
            //上传进度      
            var pro = document.getElementById('prouploadfile');      
            var persent = document.getElementById('persent');      
            function clearpro(){      
                pro.value=0;      
                persent.innerHTML="0%";      
            }              
            //2.拖拽      
            var stopbutton = document.getElementById('stop');      
                  
            var resultfile="";    
            var box = document.getElementById('drop_area'); //拖拽区域