checkbox(one check all check,one cancel all cancel)

<SCRIPT LANGUAGE="JavaScript">

<!--

function ctrla()

{

//alert("")

//document.all.cfile.checked=true;

var e = fmfile.cfile;

if (document.fmfile.cfileall.checked)

{

//alert("");

for( var i = 0; i < e.length; i++ )

e[i].checked=true;

//alert("");}

}

else

{

for( var i = 0; i < e.length; i++ )

e[i].checked=false;

}

}

//-->

</SCRIPT>

/<form name=fmfile action=convert.asp ><input type=checkbox name=cfileall onclick=javascript:ctrla()><input type=checkbox name=cfile value=global.asa>global.asa

<BR><input type=checkbox name=cfile value=global.asa.bak>global.asa.bak

<BR><input type=checkbox name=cfile value=global.asa.bak.bak>global.asa.bak.bak

<BR><input type=checkbox name=cfile value=help.gif>help.gif

<BR><input type=checkbox name=cfile value=mmc.gif>mmc.gif

<BR><input type=checkbox name=cfile value=pagerror.gif>pagerror.gif

<BR><input type=checkbox name=cfile value=postinfo.html>postinfo.html

<BR><input type=checkbox name=cfile value=print.gif>print.gif

<BR><input type=checkbox name=cfile value=tt.asp>tt.asp

<BR><input type=checkbox name=cfile value=tt.asp.bak>tt.asp.bak

<BR><input type=checkbox name=cfile value=warning.gif>warning.gif

<BR><input type=checkbox name=cfile value=web.gif>web.gif

<BR><input type=checkbox name=cfile value=win2000.gif>win2000.gif

<BR><input type=checkbox name=cfile value=_vti_inf.html>_vti_inf.html

<BR><input type=submit name=action value=转换><input type=submit name=action value=删除></form><center><FORM METHOD=POST ACTION=dir.asp>请选择目录：<select NAME=dirm><option value=gudai>gudai</option><option value=aspnet_client>aspnet_client</option>

<option value=images>images</option>

<option value=WebService1>WebService1</option>

<option value=WebService2>WebService2</option>

<option value=_private>_private</option>

<option value=_vti_cnf>_vti_cnf</option>

<option value=_vti_log>_vti_log</option>

<option value=_vti_pvt>_vti_pvt</option>

<option value=_vti_script>_vti_script</option>

<option value=_vti_txt>_vti_txt</option>

</select><input type=hidden name=updirm value=/><INPUT TYPE=submit value=进入></form><a href='javascript:history.back(-1)'>返回</a></FORM>