innerHTML 会修改HTML文件怎么办

function showIE(cid,btype,username)
{
    var ice=document.all.ice;
    ice.style.cssText = "position: absolute; width: 550; height: 200; visibility: visible; overflow: visible; z-index: 100; left: 100; top: 100;";
    ice.innerHTML += " <form method=\"post\" action=\"edit_add.asp\" name=\"addform\">\n";
    ice.innerHTML += " <input type=\"hidden\" name=\"id\" value="+cid+">\n";
    ice.innerHTML += " <input type=\"hidden\" name=\"type\" value="+btype+">\n";
    ice.innerHTML += " <input type=\"hidden\" name=\"content1\">\n";
    ice.innerHTML += " <table width=\"100%\"  border=\"0\" cellspacing=\"0\" bgcolor=\"#D4D0C8\" style=\"border: 1px solid #6699CC;\">\n";
    ice.innerHTML += " <tr>\n";
    ice.innerHTML += " <td height=\"20\" valign=\"middle\" bgcolor=\"#6699CC\"><img src=\"img/doc1.gif\" width=\"15\" height=\"15\"><strong><font color=\"#ffffff\">我</font><font color=\"#ff0000\">"+username+"</font><font color=\"#ffffff\">也来说两句！</font></strong></td>\n";
    ice.innerHTML += " <td align=\"right\" height=\"20\" valign=\"middle\" bgcolor=\"#6699CC\"><a href=\"javascript:closeit();\"><img src=\"img/close.gif\" width=\"17\" height=\"15\" border=\"0\"></a></td>\n";
    ice.innerHTML += " </tr>\n";
    ice.innerHTML += " <tr>\n";
    ice.innerHTML += " <td colspan=\"2\">主题:<select size=\"1\" name=\"docgif\">\n";
    ice.innerHTML += " <option selected value=\"img/doc0.gif\">原创</option>\n";
    ice.innerHTML += " <option value=\"img/doc10.gif\">转贴</option>\n";
    ice.innerHTML += "                                        <option value=\"img/doc1.gif\">闲聊</option>\n";
    ice.innerHTML += "                                        <option value=\"img/doc2.gif\">问题</option>\n";
    ice.innerHTML += "                                        <option value=\"img/doc3.gif\">警告</option>\n";
    ice.innerHTML += "                                        <option value=\"img/doc4.gif\">开心</option>\n";
    ice.innerHTML += "                                        <option value=\"img/doc5.gif\">烦恼</option>\n";
    ice.innerHTML += "                                        <option value=\"img/doc6.gif\">生气</option>\n";
    ice.innerHTML += "                                        <option value=\"img/doc7.gif\">同意</option>\n";
    ice.innerHTML += "                                        <option value=\"img/doc8.gif\">反对</option>\n";
    ice.innerHTML += "                                        <option value=\"img/doc9.gif\">声明</option></select>\n";
    ice.innerHTML += "                       <input name=\"textfield\" type=\"text\" size=\"64\">\n";
    ice.innerHTML += "   </td>\n";
    ice.innerHTML += "    </tr>\n";
    ice.innerHTML += "    <tr>\n";
    ice.innerHTML += "      <td colspan=\"2\"><iframe ID=\"eWebEditor1\" src=\"http://www.gooot.com/editor/ewebeditor.asp?id=content1&style=standard1\" frameborder=\"0\" scrolling=\"no\" width=\"550\" HEIGHT=\"350\"></iframe></td>\n";
    ice.innerHTML += "    </tr>\n";
    ice.innerHTML += "    <tr>\n";
    ice.innerHTML += "      <td colspan=\"2\" align=\"center\"><input type=\"submit\" name=\"Submit\" value=\"提交\"><input type=\"submit\" name=\"Submit\" value=\"提交\"></td>\n";
    ice.innerHTML += "    </tr>\n";
    ice.innerHTML += "    <tr>\n";
    ice.innerHTML += "      <td colspan=\"2\" height=\"5\"></td>\n";
    ice.innerHTML += "    </tr>\n";
    ice.innerHTML += "    <tr>\n";
    ice.innerHTML += "      <td colspan=\"2\" align=\"center\" valign=\"middle\" bgcolor=\"#6699CC\">在参加Gooot.com交流中心讨论之前您必须仔细阅读并同意<a href=\"http://www.xici.net/help/senddoc.asp\" target=\"_blank\"><font color=\"#ffff00\">网络条款</font></a></td>\n";
    ice.innerHTML += "    </tr>\n";
    ice.innerHTML += "  </table>\n";
    ice.innerHTML += "  </form>\n";
    alert(ice.innerHTML)
}