[求助]网页已经禁用鼠标右健.但调用网页内的鼠标右健却能用.

<iframe frameSpacing="0" frameBorder="0" height="230" scrolling="no" width="600px" name="mainframe" VSPACE="0" src="http://www. align="left" valign="top" id="mainframe" ></iframe>
</SCRIPT>
<LINK <script>
<SCRIPT langauge="javasript">                                          
<!--                                          
document.oncontextmenu=new Function("event.returnValue=false;");                                          
document.onselectstart=new Function("event.returnValue=false;");                                          
-->                                          
</SCRIPT>
朋友本网页已经禁用鼠标右健.但是调用网页内的鼠标右健却能用.有什么代码把调用网页内的鼠标右健禁用.[请点击鼠标右健]
代码预览网页:http://xzd.
[[[[高人请帮我把网页中的调用网页内的鼠标右健都禁掉.把全部代码发到回复栏中]]]]