JavaScript»ñÈ¡¸´Ñ¡¿òµÄÖµ

<script type="text/javascript">
<!--
    function myCheck() {
       var str = "";
       for(var i=0; i<document.forms[0].chk_type.length; i++) {
           if(document.forms[0].chk_type[i].checked) {
              str += document.forms[0].chk_type[i].value + " ";
           }  
       }
       document.getElementById('txt_info').value = str;
    }
 
-->
</script>
<form name="form1">
      <table width="348" height="158" border="0" align="center" cellpadding="0" cellspacing="1" bgcolor="#33FF00">
      <tr>
         <td>ÐËȤ°®ºÃ£º</td>
        <td><input type="checkbox" name="chk_type" value="×ãÇò"/>×ãÇò
        <input type="checkbox" name="chk_type" value="ÉÏÍø"/>ÉÏÍø
            <input type="checkbox" name="chk_type" value="¿´µçÓ°"/>¿´µçÓ°
            <input type="checkbox" name="chk_type" value="ħÊõ"/>ħÊõ
        </td>
      </tr>
      <tr>
         <td>ÄãÑ¡ÔñµÄÊÇ£º</td>
         <td>
        <textarea name="txt_info" onfocus="return myCheck();"></textarea>
        </td>
    &nb