删原有导航条的代码是:
<img src="http://bbs.w3sea.net/_mytemp/qqzone/SMLOGO.gif" onload="bt_1.style.display='none';bt_2.style.display='none';bt_3.style.display='none';
bt_4.style.display='none';bt_5.style.display='none';bt_6.style.display='none';bt_7.style.display='none';
bt_8.style.display='none';" style="display:none;">
<img src="http://bbs.w3sea.net/_mytemp/qqzone/SMLOGO.gif" onload="bt_1.style.display='none';bt_2.style.display='none';bt_3.style.display='none';
bt_4.style.display='none';bt_5.style.display='none';bt_6.style.display='none';bt_7.style.display='none';
bt_8.style.display='none';" style="display:none;">