Soluçao para iframes nao cortarem o conteudo

EU achei esse codigo por ai ele vai no FF IE e unica coisa que não vai é no opera esse é aquele esquema para iframe nao cortar o conteudo se conseguirem estarão praticamente resolvendo o problema de muita gente

<script type="text/javascript">/************************************************ IFrame SSI script II- © Dynamic Drive DHTML code library ([http://www.dynamicdrive.com)*](http://www.dynamicdrive.com)*) Visit DynamicDrive.com for hundreds of original DHTML scripts* This notice must stay intact for legal use***********************************************///Input the IDs of the IFRAMES you wish to dynamically resize to match its content height://Separate each ID with a comma. Examples: ["myframe1", "myframe2"] or ["myframe"] or [] for none:var iframeids=["myframe"]//Should script hide iframe from browsers that don't support this script (non IE5+/NS6+ browsers. Recommended):var iframehide="yes"var getFFVersion=navigator.userAgent.substring(navigator.userAgent.indexOf("Firefox")).split("/")[1]var FFextraHeight=parseFloat(getFFVersion)>=0.1? 16 : 0 //extra height in px to add to iframe in FireFox 1.0+ browsersfunction resizeCaller() {var dyniframe=new Array()for (i=0; i<iframeids.length; i++){if (document.getElementById)resizeIframe(iframeids[i])//reveal iframe for lower end browsers? (see var above):if ((document.all || document.getElementById) && iframehide=="no"){var tempobj=document.all? document.all[iframeids[i]] : document.getElementById(iframeids[i])tempobj.style.display="block"}}}function resizeIframe(frameid){var currentfr=document.getElementById(frameid)if (currentfr && !window.opera){currentfr.style.display="block"if (currentfr.contentDocument && currentfr.contentDocument.body.offsetHeight) //ns6 syntaxcurrentfr.height = currentfr.contentDocument.body.offsetHeight+FFextraHeight; else if (currentfr.Document && currentfr.Document.body.scrollHeight) //ie5+ syntaxcurrentfr.height = currentfr.Document.body.scrollHeight;if (currentfr.addEventListener)currentfr.addEventListener("load", readjustIframe, false)else if (currentfr.attachEvent){currentfr.detachEvent("onload", readjustIframe) // Bug fix linecurrentfr.attachEvent("onload", readjustIframe)}}}function readjustIframe(loadevt) {var crossevt=(window.event)? event : loadevtvar iframeroot=(crossevt.currentTarget)? crossevt.currentTarget : crossevt.srcElementif (iframeroot)resizeIframe(iframeroot.id);}function loadintoIframe(iframeid, url){if (document.getElementById)document.getElementById(iframeid).src=url}if (window.addEventListener)window.addEventListener("load", resizeCaller, false)else if (window.attachEvent)window.attachEvent("onload", resizeCaller)elsewindow.onload=resizeCaller</script>

No iframe

<iframe id="myframe" src="/meusite/gera.php?action=inicial" scrolling="no" marginwidth="0" marginheight="0" frameborder="0" vspace="0" hspace="0" style="overflow:visible; width:100%; display:none"></iframe>