Php y Java Script; incluir comandos PHP dentro de JavaScript

[helthon]

Hola a todos yo tengo un script que hacia que se muestre 3 imagenes con su texto cada ciertos segundos ahora deseo que esas imagenes que las tengo en el servidor se muestren. pero cuando pongo mi codigo ahi esta el error no carga la iamgen
Mi script es el siguiente :

Código HTML:

<script type="text/javascript">
/***********************************************
* Fading Scroller- © Dynamic Drive DHTML code library (www.dynamicdrive.com)
* This notice MUST stay intact for legal use
* Visit Dynamic Drive at http://www.dynamicdrive.com/ for full source code
***********************************************/
var delay = 9000; //set delay between message change (in miliseconds)
var maxsteps=30; // number of steps to take to change from start color to endcolor
var stepdelay=40; // time in miliseconds of a single step
//**Note: maxsteps*stepdelay will be total time in miliseconds of fading effect
var startcolor= new Array(255,255,255); // start color (red, green, blue)
var endcolor=new Array(0,0,0); // end color (red, green, blue)

var fcontent=new Array();
begintag='<div style="font: normal 14px Arial; padding: 5px;">'; //set opening tag, such as font declarations
fcontent[0]="<a href='index.php?opcion=pdchannel' class='vinculo01'><img src='imagenes/homepublicaciones/<?php echo $img_file; ?>' width='127' height='170' alt='Descarga la publicación de tu revista Channel News Perú'><br>Revista Chanel News </a>";
fcontent[1]="<a href='index.php?opcion=pdclubempresarial' class='vinculo01'><img src='imagenes/homepublicaciones/club11agosto.jpg' width='127' height='170' alt='Descarga la publicación de tu revista Club Empresarial'><br>Revista Club Empresarial </a>";
fcontent[2]="<a href='index.php?opcion=pdpesca' class='vinculo01'><img src='imagenes/homepublicaciones/pesca11agosto.jpg' width='127' height='170' alt='Descarga la publicación de tu revista Pesca Responsable'><br>Pesca responsable</a>";
closetag='</div>';

var fwidth='171px'; //set scroller width
var fheight='200px'; //set scroller height

var fadelinks=0;  //should links inside scroller content also fade like text? 0 for no, 1 for yes.
///No need to edit below this line/////////////////
var ie4=document.all&&!document.getElementById;
var DOM2=document.getElementById;
var faderdelay=0;
var index=0;


/*Rafael Raposo edited function*/
//function to change content
function changecontent(){
  if (index>=fcontent.length)
    index=0
  if (DOM2){
    document.getElementById("fscroller").style.color="rgb("+startcolor[0]+", "+startcolor[1]+", "+startcolor[2]+")"
    document.getElementById("fscroller").innerHTML=begintag+fcontent[index]+closetag
    if (fadelinks)
      linkcolorchange(1);
    colorfade(1, 15);
  }
  else if (ie4)
    document.all.fscroller.innerHTML=begintag+fcontent[index]+closetag;
  index++
}

// colorfade() partially by Marcio Galli for Netscape Communications.  ////////////
// Modified by Dynamicdrive.com

function linkcolorchange(step){
  var obj=document.getElementById("fscroller").getElementsByTagName("A");
  if (obj.length>0){
    for (i=0;i<obj.length;i++)
      obj[i].style.color=getstepcolor(step);
  }
}

/*Rafael Raposo edited function*/
var fadecounter;
function colorfade(step) {
  if(step<=maxsteps) {	
    document.getElementById("fscroller").style.color=getstepcolor(step);
    if (fadelinks)
      linkcolorchange(step);
    step++;
    fadecounter=setTimeout("colorfade("+step+")",stepdelay);
  }else{
    clearTimeout(fadecounter);
    document.getElementById("fscroller").style.color="rgb("+endcolor[0]+", "+endcolor[1]+", "+endcolor[2]+")";
    setTimeout("changecontent()", delay);
	
  }   
}

/*Rafael Raposo's new function*/
function getstepcolor(step) {
  var diff
  var newcolor=new Array(3);
  for(var i=0;i<3;i++) {
    diff = (startcolor[i]-endcolor[i]);
    if(diff > 0) {
      newcolor[i] = startcolor[i]-(Math.round((diff/maxsteps))*step);
    } else {
      newcolor[i] = startcolor[i]+(Math.round((Math.abs(diff)/maxsteps))*step);
    }
  }
  return ("rgb(" + newcolor[0] + ", " + newcolor[1] + ", " + newcolor[2] + ")");
}

if (ie4||DOM2)
  document.write('<div id="fscroller" style="border:0px solid black;width:'+fwidth+';height:'+fheight+'"></div>');

if (window.addEventListener)
window.addEventListener("load", changecontent, false)
else if (window.attachEvent)
window.attachEvent("onload", changecontent)
else if (document.getElementById)
window.onload=changecontent
</script> 

Si alguien conociera otro metodo mejor se los agradeceria