try 1.
<body onhelp="window.open('mk:@MSITStore:http://www.blueidea.com/user/qswh/css2.chm::/css2/c_wordwrap.html');return false;">按F1是出现我自己的CHM 帮助,
<body onhelp="window.open('mk:@MSITStore:http://www.blueidea.com/user/qswh/css2.chm::/css2/c_wordwrap.html');return false;">按F1是出现我自己的CHM 帮助,
用its:简单一些!