A veces con las etiquetas Div se produce eso que te pasa de no poder ver, nose donde podes tener el error pero te adjunto un menjador de flash que funciona muy bien
Código PHP:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>slideshow</title>
<script type="text/javascript">
if(typeof com=="undefined"){var com=new Object();}
if(typeof com.deconcept=="undefined"){com.deconcept=new Object();}
if(typeof com.deconcept.util=="undefined"){com.deconcept.util=new Object();}
if(typeof com.deconcept.FlashObjectUtil=="undefined"){com.deconcept.FlashObjectUtil=new Object();}
com.deconcept.FlashObject=function(_1,id,w,h,_5,c,_7,_8,_9,_a,_b){
if(!document.createElement||!document.getElementById){return;}
this.DETECT_KEY=_b?_b:"detectflash";
this.skipDetect=com.deconcept.util.getRequestParameter(this.DETECT_KEY);
this.params=new Object();
this.variables=new Object();
this.attributes=new Array();
this.useExpressInstall=_7;
if(_1){this.setAttribute("swf",_1);}
if(id){this.setAttribute("id",id);}
if(w){this.setAttribute("width",w);}
if(h){this.setAttribute("height",h);}
if(_5){this.setAttribute("version",new com.deconcept.PlayerVersion(_5.toString().split(".")));}
this.installedVer=com.deconcept.FlashObjectUtil.getPlayerVersion(this.getAttribute("version"),_7);
if(c){this.addParam("bgcolor",c);}
var q=_8?_8:"high";
this.addParam("quality",q);
var _d=(_9)?_9:window.location;
this.setAttribute("xiRedirectUrl",_d);
this.setAttribute("redirectUrl","");
if(_a){this.setAttribute("redirectUrl",_a);}
};
com.deconcept.FlashObject.prototype={setAttribute:function(_e,_f){
this.attributes[_e]=_f;
},getAttribute:function(_10){
return this.attributes[_10];
},addParam:function(_11,_12){
this.params[_11]=_12;
},getParams:function(){
return this.params;
},addVariable:function(_13,_14){
this.variables[_13]=_14;
},getVariable:function(_15){
return this.variables[_15];
},getVariables:function(){
return this.variables;
},createParamTag:function(n,v){
var p=document.createElement("param");
p.setAttribute("name",n);
p.setAttribute("value",v);
return p;
},getVariablePairs:function(){
var _19=new Array();
var key;
var _1b=this.getVariables();
for(key in _1b){_19.push(key+"="+_1b[key]);}
return _19;
},getFlashHTML:function(){
var _1c="";
if(navigator.plugins&&navigator.mimeTypes&&navigator.mimeTypes.length){
if(this.getAttribute("doExpressInstall")){
this.addVariable("MMplayerType","PlugIn");
}
_1c="<embed type=\"application/x-shockwave-flash\" src=\""+this.getAttribute("swf")+"\" width=\""+this.getAttribute("width")+"\" height=\""+this.getAttribute("height")+"\"";
_1c+=" id=\""+this.getAttribute("id")+"\" name=\""+this.getAttribute("id")+"\" ";
var _1d=this.getParams();
for(var key in _1d){_1c+=[key]+"=\""+_1d[key]+"\" ";}
var _1f=this.getVariablePairs().join("&");
if(_1f.length>0){_1c+="flashvars=\""+_1f+"\"";}
_1c+="/>";
}else{
if(this.getAttribute("doExpressInstall")){this.addVariable("MMplayerType","ActiveX");}
_1c="<object id=\""+this.getAttribute("id")+"\" classid=\"clsid:D27CDB6E-AE6D-11cf-96B8-444553540000\" width=\""+this.getAttribute("width")+"\" height=\""+this.getAttribute("height")+"\">";
_1c+="<param name=\"movie\" value=\""+this.getAttribute("swf")+"\" />";
var _20=this.getParams();
for(var key in _20){_1c+="<param name=\""+key+"\" value=\""+_20[key]+"\" />";}
var _22=this.getVariablePairs().join("&");
if(_22.length>0){_1c+="<param name=\"flashvars\" value=\""+_22+"\" />";
}_1c+="</object>";}
return _1c;
},write:function(_23){
if(this.useExpressInstall){
var _24=new com.deconcept.PlayerVersion([6,0,65]);
if(this.installedVer.versionIsValid(_24)&&!this.installedVer.versionIsValid(this.getAttribute("version"))){
this.setAttribute("doExpressInstall",true);
this.addVariable("MMredirectURL",escape(this.getAttribute("xiRedirectUrl")));
document.title=document.title.slice(0,47)+" - Flash Player Installation";
this.addVariable("MMdoctitle",document.title);}
}else{this.setAttribute("doExpressInstall",false);}
if(this.skipDetect||this.getAttribute("doExpressInstall")||this.installedVer.versionIsValid(this.getAttribute("version"))){
var n=(typeof _23=="string")?document.getElementById(_23):_23;
n.innerHTML=this.getFlashHTML();
}else{if(this.getAttribute("redirectUrl")!=""){document.location.replace(this.getAttribute("redirectUrl"));}}}};
com.deconcept.FlashObjectUtil.getPlayerVersion=function(_26,_27){
var _28=new com.deconcept.PlayerVersion(0,0,0);
if(navigator.plugins&&navigator.mimeTypes.length){
var x=navigator.plugins["Shockwave Flash"];
if(x&&x.description){_28=new com.deconcept.PlayerVersion(x.description.replace(/([a-z]|[A-Z]|s)+/,"").replace(/(s+r|s+b[0-9]+)/,".").split("."));}
}else{
try{var axo=new ActiveXObject("ShockwaveFlash.ShockwaveFlash");
for(var i=3;axo!=null;i++){
axo=new ActiveXObject("ShockwaveFlash.ShockwaveFlash."+i);
_28=new com.deconcept.PlayerVersion([i,0,0]);}}
catch(e){}
if(_26&&_28.major>_26.major){return _28;}
if(!_26||((_26.minor!=0||_26.rev!=0)&&_28.major==_26.major)||_28.major!=6||_27){
try{
_28=new com.deconcept.PlayerVersion(axo.GetVariable("$version").split(" ")[1].split(","));
}catch(e){}}}
return _28;
};
com.deconcept.PlayerVersion=function(_2c){
this.major=parseInt(_2c[0])||0;
this.minor=parseInt(_2c[1])||0;
this.rev=parseInt(_2c[2])||0;
};
com.deconcept.PlayerVersion.prototype.versionIsValid=function(fv){
if(this.major<fv.major){return false;}
if(this.major>fv.major){return true;}
if(this.minor<fv.minor){return false;}
if(this.minor>fv.minor){return true;}
if(this.rev<fv.rev){return false;}
return true;
};
com.deconcept.util={getRequestParameter:function(_2e){
var q=document.location.search||document.location.hash;
if(q){var _30=q.indexOf(_2e+"=");
var _31=(q.indexOf("&",_30)>-1)?q.indexOf("&",_30):q.length;
if(q.length>1&&_30>-1){
return q.substring(q.indexOf("=",_30)+1,_31);}}return "";
},removeChildren:function(n){
while(n.hasChildNodes()){
n.removeChild(n.firstChild);}}};
if(Array.prototype.push==null){
Array.prototype.push=function(_33){
this[this.length]=_33;
return this.length;};}
var getQueryParamValue=com.deconcept.util.getRequestParameter;
var FlashObject=com.deconcept.FlashObject;
</script>
<style type="text/css">
html {
height: 100%;
overflow: hidden;
}
#flashcontent {
height: 100%;
}
body {
height: 100%;
margin: 0;
padding: 0;
background-color: #181818;
color:#ffffff;
}
</style>
</head>
<body>
<div id="flashcontent"></div>
<script type="text/javascript">
var fo = new FlashObject("flash/why/slideshow_as1.swf", "slideshow", "684", "463", "8", "#181818");
fo.addParam("scale", "noscale");
fo.write("flashcontent");
</script>
</body>
</html>