js 返回值问题

Question

用js动态生成行,回车弹出一页，取得返回值赋给动态生成的行。

Answer 1

open:
<script language="javascript">
    var a;
    function keyPressed(value){
        if(window.event.keyCode==13){
            a = value;
            window.open("beopen.html");
        }
    }
</script>
<input type="text" onkeypress="keyPressed(this.value);" />beopen:
<script language="javascript">
    document.write(window.opener.a);
</script>

Answer 2

3楼正解，不过注意兼容问题：
<script language="javascript">
     var a;
     function keyPressed(value){
         var event = event || window.event;
         if(event.keyCode==13){
             a = value;
             window.open("beopen.html");
         }
     }
  </script>