js checkbox演示

<html>

    <head>

       <meta http-equiv="Content-Type" content="text/html; charset=gb2312" />

       <title></title>

       <script type="text/javascript">

function form_Attachment()

{

    var form_p_w_uploads="";

   

    var list=document.getElementsByTagName("input");

    for(var i=0;i<list.length;i++)

    {

       if(list[i].type=="checkbox")

       {

           if(list[i].checked==false)

           {

              form_p_w_uploads+=list[i].value+",";

           }

       }

 

    }

    var sequnce_id=form_p_w_uploads.substring(0,form_p_w_uploads.length-1);

    document.getElementById("sequence").value=sequnce_id;

 

}

</script>

    </head>

    <body>

       <form id="form1" name="form1" method="post">

           <p>

              <input type="text" id="sequence" name="sequence" />

              <input type="checkbox" name="checkbox" value="1" />

              <input type="checkbox" name="checkbox" value="2" />

              <input name="checkbox" type="checkbox" value="3" />

              <input type="checkbox" name="checkbox" value="4" />

              <input type="checkbox" name="checkbox" value="5" />

              <input type="checkbox" name="checkbox" value="6" />

           </p>

           <input type="button" name="Submit" value="提交"

              onclick="form_Attachment();" />

           </p>

       </form>

    </body>

</html>

 

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