用js在两个页面之间传值

子窗体中给父窗体动态创建表：

<script>
        function Product(product_name,product_id,product_describe,AMOUNT_UNIT,COST_PRICE)
        {
           
           var arry= new Array("1",product_name,product_id,product_describe,AMOUNT_UNIT,COST_PRICE);
           var Hiddfield=window.opener.document.getElementById("Hddf");
           var table = window.opener.document.getElementById("tbDispalys");
           var rowlength=table.rows.length;
           for (var i=0;i<rowlength ;i++ )
   {
    if(table.rows[i].cells[2].innerText==product_id)//已存在
    {
     return;
    }
   }
           var tr=table.insertRow();
           var td=tr.insertCell();
           td.innerHTML="<input type='checkbox' name='xuanze'/>";
           for(var j=1;j<7;j++)
           {
                var td1=tr.insertCell();
                if(j==4)
                {
                    td1.innerHTML="<input type='text' value=1 class='textLine' />";
                    Hiddfield.value+=","+"1";
                   
                }
                else if(j>4)
                {
                    td1.innerText=arry[j-1];
                    Hiddfield.value+=","+arry[j-1];                   
                }
                else
                {
                    td1.innerText=arry[j];
                    Hiddfield.value+=","+arry[j];
                }
           }
           var td2=tr.insertCell();
           td2.innerText=arry[5];  
           Hiddfield.value+=","+arry[5]+";";
        }
    </script>