Set up your IFRAME:
<IFRAME style="DISPLAY: none; LEFT: 0px; POSITION: absolute; TOP: 0px" src="javascript:false;" frameBorder="0" scrolling="no"></IFRAME>
iframe.style.top
iframe.style.left
iframe.style.width
iframe.style.height
iframe.style.zIndex
iframe.style.display
iframe.style.filter='progid:DXImageTransform.Microsoft.Alpha(style=0,opacity=0)'========
==================
;在Layer中再插Iframe或Object设z-Index值 <divz-Index:2><objectxxx></object>#前面 <divz-Index:1><objectxxx></object>#后面 <divid="Layer2"style="position:absolute;top:40;width:400px; height:95px;z-index:2">height=100%width=100%> <iframewidth=0height=0></iframe> </div> <divid="Layer1"style="position:absolute;top:50;width:200px; height:115px;z-index:1"> <iframeheight=100%width=100%></iframe> </div>