How to show Flash and image with js layers?

Question

DisplayFla(){
var url = document.getElementById("URL").value;
    if(document.getElementById("TypeId").value == "Flash"){  
        document.getElementById('view1').src = url;
        document.getElementById('Layer4').innerHTML = '';
        document.getElementById('Layer3').style.position = 'static';
        document.getElementById('Layer3').style.visibility = 'visible';
    }
    else{
        document.getElementById('Layer4').innerHTML = "<a href='#'>" + url + "</a>";
        document.getElementById('Layer3').style.position = 'absolute';
        document.getElementById('Layer3').style.visibility = 'hidden';
    }
}
</script><span id="Layer2"></span>
<div id="Layer1" style="position:absolute; visibility: hidden">
<img id="view" border=0 src=""> <span id="Layer4"></span>
<div id="Layer3" style="position:absolute; visibility: hidden">
<OBJECT classid="clsid:d27cdb6e-ae6d-11cf-96b8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=
8,5,0,175\">
<PARAM NAME=movie value="view1">
<PARAM NAME=menu VALUE=false><PARAM NAME=quality VALUE=high>      
<EMBED src="view1"></EMBED></OBJECT></div>