利用父子窗口.可以访问 父 子内的任何数据.
以下是类似的代码
    parent.right.document.open("text/html","replace");//replace
    parent.right.document.write("<script language=javascript>");
    parent.right.document.write("alert('"+html_var+"')");
    parent.right.document.write("<\/script>");
    parent.right.document.close();