iframe的一个例子

<iframe name="pollmain" id="pollmain" width="100%" src="../project_operation/fwpjlr.do?method=fwxxLrDetail&id=<c:out value='${projectInfo.id}'/>" scrolling="no" frameborder="no"  marginwidth=0 marginheight=0 ></iframe>
 
parent.document.all.pollmain.style.height=document.body.scrollHeight;