ho questo script in php per caricare le immagini in slideshow..appena apro la pagina mi visualizza le immagini con grandezza 200px X 200px poi di colpo mi appare l'immagine con dimenzione reale..chi sa dove modificare per visualizzarle sempre a 200x200? grazie...

posto la parte del codice relativa all' html, non ci entra tutto in un mess.se devo postare tutto il codice me lo dite:

Codice PHP:
//end part for showing a slideshow      



//begin part for giving out zip archive of all photos:

//begin zip routine class based on and mostly equal to code found here:
//http://www.zend.com/zend/spotlight/creating-zip-files1.php
//some zip file format specification used from:
//http://www.pkware.com/business_and_developers/developer/popups/appnote.txt

class zipfile
{
  var 
$ctrl_dir = array();
  var 
$eof_ctrl_dir "\x50\x4b\x05\x06\x00\x00\x00\x00";
  var 
$old_offset 0;
  var 
$new_offset 0;

function 
add_dir($name)
    {
        
$name str_replace("\\""/"$name);

        
$fr "\x50\x4b\x03\x04";
        
$fr .= "\x0a\x00";
        
$fr .= "\x00\x00";
        
$fr .= "\x00\x00";
        
$fr .= "\x00\x00\x00\x00";

        
$fr .= pack("V",0);
        
$fr .= pack("V",0);
        
$fr .= pack("V",0);
        
$fr .= pack("v"strlen($name) );
        
$fr .= pack("v");
        
$fr .= $name;
        
$fr .= pack("V"0);
        
$fr .= pack("V"0);
        
$fr .= pack("V"0);

        
$this->new_offset += strlen($fr);
        echo 
$fr;

     
$cdrec "\x50\x4b\x01\x02";
     
$cdrec .="\x00\x00";
     
$cdrec .="\x0a\x00";
     
$cdrec .="\x00\x00";
     
$cdrec .="\x00\x00";
     
$cdrec .="\x00\x00\x00\x00";
     
$cdrec .= pack("V",0);
     
$cdrec .= pack("V",0);
     
$cdrec .= pack("V",0);
     
$cdrec .= pack("v"strlen($name) );
     
$cdrec .= pack("v");
     
$cdrec .= pack("v");
     
$cdrec .= pack("v");
     
$cdrec .= pack("v");
     
$ext "\x00\x00\x10\x00";
     
$ext "\xff\xff\xff\xff";
     
$cdrec .= pack("V"16 );
     
$cdrec .= pack("V"$this -> old_offset );
     
$cdrec .= $name;

     
$this -> ctrl_dir[] = $cdrec;
     
$this -> old_offset $this->new_offset;
     return;
}


function 
add_file($data$name$timedate) {
   
$name str_replace("\\""/"$name);
   
$unc_len strlen($data);
   
$crc crc32($data);
   
$zdata $data;
   
$c_len strlen($zdata);

        
$fr "\x50\x4b\x03\x04";
        
$fr .= "\x14\x00";
        
$fr .= "\x00\x00";
        
$fr .= "\x00\x00";//no compression
        
$fr .= $timedate;//date stamp
        
$fr .= pack("V",$crc);
        
$fr .= pack("V",$c_len);
        
$fr .= pack("V",$unc_len);
        
$fr .= pack("v"strlen($name) );
        
$fr .= pack("v");
        
$fr .= $name;
        
$fr .= $zdata;
        
$fr .= pack("V",$crc);
        
$fr .= pack("V",$c_len);
        
$fr .= pack("V",$unc_len);

  
$this->new_offset += strlen($fr);
  echo 
$fr;

  
$cdrec "\x50\x4b\x01\x02";
  
$cdrec .="\x00\x00";
  
$cdrec .="\x14\x00";
  
$cdrec .="\x00\x00";
  
$cdrec .="\x00\x00";//no compression
  
$cdrec .= $timedate;//date stamp
  
$cdrec .= pack("V",$crc);
  
$cdrec .= pack("V",$c_len);
  
$cdrec .= pack("V",$unc_len);
  
$cdrec .= pack("v"strlen($name) );
  
$cdrec .= pack("v");
  
$cdrec .= pack("v");
  
$cdrec .= pack("v");
  
$cdrec .= pack("v");
  
$cdrec .= pack("V"32 );
  
$cdrec .= pack("V"$this -> old_offset );

  
$this -> old_offset $this -> new_offset;

  
$cdrec .= $name;
  
$this -> ctrl_dir[] = $cdrec;
}

function 
file() {
        
$ctrldir implode(""$this -> ctrl_dir);

        return
            
$ctrldir.
            
$this -> eof_ctrl_dir.
            
pack("v"sizeof($this -> ctrl_dir)).
            
pack("v"sizeof($this -> ctrl_dir)).
            
pack("V"strlen($ctrldir)).
            
pack("V"$this->new_offset).
            
"\x00\x00";
    }
}
//end zip routine class

function dosti($y$n$d$h$m$s){
  return (int)((int)(((int)
$y 1980) << 25) | (int)((int)$n << 21) | 
    (int)((int)
$d << 16) | (int)((int)$h << 11) | 
    (int)((int)
$m << 5) | (int)((int)$s >> 1));
}




if(
$QUERY_STRING!="" && sizeof($args)>=&& $args[0]=="zipfile" && $allowZip!=false){
if(
strlen($basePath)>2)
  
$dirnm=substr($basePath,0,strlen($basePath)-1);//full path but without final slash
else
  
$dirnm=dirname($_SERVER["SCRIPT_NAME"]);
$dirnm=substr($dirnm,strrpos($dirnm,"/"));
$dirnm=str_replace(array("\\","/"),"",$dirnm);
header("Content-type: application/octet-stream");
header("Content-disposition: attachment; filename=\"$dirnm.zip\"");
$dirnm.="/";
$zippi=new zipfile();
$zippi->add_dir($dirnm);
for(
$i=0;$i<sizeof($filter_files);$i++){
  
$imgData=file_get_contents($basePath.$filter_files[$i]);
  
$timestamp=filemtime($basePath.$filter_files[$i]);
  
$datetime=pack("V",dosti(  date("Y",$timestamp),
                             
date("n",$timestamp),
                             
date("j",$timestamp),
                             
date("G",$timestamp),
                             
date("i",$timestamp),
                 (int)((int)(
date("s",$timestamp)/2)*2) ));
  
$zippi->add_file($imgData,$dirnm.$filter_files[$i],$datetime);
  }
echo 
$zippi->file();
die();
}
//end part for giving out zip archive of all photos:




//begin part for browsing through images:
function photosSize(){
global 
$filter_files;
global 
$basePath;
$fSum=0;
foreach(
$filter_files as $fn){
  
$fSum+=filesize($basePath.$fn);
  }
return 
sprintf("%01.2f MB",(((int)((int)$fSum/1024))/1024));
}

if(
$QUERY_STRING!="" && sizeof($args)>=&& is_numeric($args[0]))
  
$offset=((int)(intval($args[0])/$maxperpage))*$maxperpage;
else
  
$offset=0;

if(
$offset<0)
  
$offset=0;
if(
$offset>=sizeof($filter_files))
  
$offset=sizeof($filter_files)-(sizeof($filter_files) % $maxperpage);

echo 
"$doctype<html><head>$encoding<meta name=\"info\" content=\"Generated using PHPshow, available at phpshow.panmental.de\">";
echo 
$stylesheet."\r\n";
   echo 
"<script type=\"text/javascript\">";
   echo 
"<!--\r\n";
   echo 
"function slides(){\r\n";
   echo 
"self.location.href=\"$SCRNAME?$GD_WORKAROUND".$sep."slides$sep".$offset."\";\r\n";
   echo 
"\r\n}
 picTexts=new Array("
.sizeof($filter_files).");
 picLinks=new Array("
.sizeof($filter_files).");\r\n";
browsePicMetaData();
   echo 
"
var dontHide=false;
var lastNum=-1;
function showData(num,caller) {
  infotxt=document.getElementById(\"infotext\");
  if((picTexts[num])&&(picTexts[num]!=\"\")){
   dontHide=true;
   if(lastNum!=num){
    lastNum=num;
    infotxt.style.visibility=\"visible\";
    x=caller.offsetParent;
    tmpLeft=0;
    while(x){
      tmpLeft+=x.offsetLeft;
      x=x.offsetParent;
      }
    infotxt.style.left=tmpLeft;
    y=caller;
    tmpTop=0;
    while(y){
      tmpTop+=y.offsetTop;
      y=y.offsetParent;
      }
    infotxt.style.top=tmpTop+caller.offsetHeight+4;
    infotxt.style.width=caller.offsetWidth-4;
    if((picLinks[num])&&(picLinks[num]!=\"\")){
      infotxt.innerHTML=\"[url='\"+picLinks[num]+\"']<span class='info'>\"+picTexts[num]+\"</span>[/url]\";
      }
    else
      infotxt.innerHTML=\"<span class='info'>\"+picTexts[num]+\"</span>\";
    }
  }
  else{
   if(infotxt)
    infotxt.style.visibility=\"hidden\";
    lastNum=-1;
  }
 return false;
}
function doHide(){
  dontHide=false;
  hideData();
}
function hideData(){
 if(!dontHide){
  infotxt=document.getElementById(\"infotext\");
  infotxt.style.visibility=\"hidden\";
  lastNum=-1;
 }
}
window.onresize = doHide;
  "
;
if(
$allowZip){
  
$downloadString=str_replace(array("#SIZE#"),photosSize(),$downloadString);
  
$downloadString=str_replace(array("#NUM#"),sizeof($filter_files),$downloadString);
  echo 
"function downloadExec(){
        res=confirm(\"
$downloadString\");
        if(res)
          self.location.href=\"
$SCRNAME?zipfile\";\r\n}\r\n";
   }

$priorPageLink="$SCRNAME?$GD_WORKAROUND$sep".strval($offset-$maxperpage);
$nextPageLink="$SCRNAME?$GD_WORKAROUND$sep".strval($offset+$maxperpage);
echo 
"
function keyControl(evnt){
  if (!evnt)
    evnt = window.event;
  if (evnt.which) {
    evntkeycode = evnt.which;
  } else if (evnt.keyCode) {
    evntkeycode = evnt.keyCode;
  }
"
;
if(
$offset>0
 echo 
"  if(evntkeycode==37)
    location.href=\"
$priorPageLink\";
"
;
if(
$offset+$maxperpage<sizeof($filter_files))
 echo 
"  if(evntkeycode==39)
    location.href=\"
$nextPageLink\";
"
;
echo 
"}
document.onkeyup = keyControl;
//-->\n </script>\r\n"
;
echo 
"<title>$browsertitle</title>";
echo 
"</head>";
echo 
"<body style=\"background-color:$bgcolor\" onmouseover=\"hideData()\">";//<span class=\"browser\">
echo "<div align=\"center\" class=\"controlTable\">";
//echo "<form name=\"ctrl\" action=\"\">";
echo "<table onmouseover=\"hideData()\" style=\"vertical-align:middle;\" align=\"center\" border=\"0\" cellpadding=\"1\" cellspacing=\"0\"><tr>";
echo 
"<td><input class=\"slidebrowse\" type=\"button\" value=\"$slidesString\" name=\"B1\" onClick=\"slides();\"/></td>";
if(
$allowZip)
  echo 
"<td><input class=\"downloadLink\" type=\"button\" value=\"$downloadButton\" onClick=\"downloadExec();\"/></td>";

echo 
"</tr></table>";
echo 
"<table onmouseover=\"hideData()\" style=\"vertical-align:middle;\" align=\"center\" border=\"0\" cellpadding=\"2\" cellspacing=\"0\"><tr>";
echo 
"<td><a class=\"goLink\" ";
if(
$offset<=0)
  echo 
"style=\"color:#aaa; text-decoration:none;\" ";
else
  echo 
"href=\"$priorPageLink\"";
echo 
" >&lt;$priorPageString</a></td>";

$startxi=$offset%$maxperpage;
$countxi=1;
if(
$startxi!=0){
  echo 
"<td><a class=\"goLink\" ";
  echo 
"href=\"$SCRNAME?$GD_WORKAROUND$sep"."0\"";
  echo 
" >$countxi</td>";
  
$countxi++;
}
for(
$xi=$startxi;$xi<sizeof($filter_files);$xi+=$maxperpage){
 
//if($xi%sizeof($filter_files)==$startxi)
  
echo "<td><a class=\"goLink\" ";
  if(
$xi==$offset)
    echo 
"style=\"color:#a00; font-weight:bold; text-decoration:none;\" ";
  else
    echo 
"href=\"$SCRNAME?$GD_WORKAROUND$sep".strval($xi)."\"";
  echo 
" >$countxi</td>";
  
$countxi++;
}

echo 
"<td><a class=\"goLink\" ";
if(
$offset+$maxperpage>=sizeof($filter_files))
   echo 
"style=\"color:#aaa; text-decoration:none;\" ";
else
  echo 
"href=\"$nextPageLink\"";
echo 
" >$nextPageString&gt;</a></td>";
echo 
"</tr></table></div>";//</tr></table></form></div>
echo "<div align=\"center\"><center>\n";
echo 
"<table onmouseover=\"hideData()\" width=\"100%\"; border=\"0\" cellpadding=\"0\" cellspacing=\"4\" style=\"table-layout:fixed; height:100;\">\r\n";//
$newline=false;
$firstTime=true;
for(
$i=$offset;($i<sizeof($filter_files)&&$i<$offset+$maxperpage);$i++){
 if((
array_key_exists($i,$picTexts))&&($picTexts[$i])&&(trim($picTexts[$i])!=""))
  
$textStyle="border-bottom-style:dashed;"
 else
  
$textStyle="";
 if((
$i-$offset) % $imgsperline==0//$scrwidth - ($realimgwidth*i % $scrwidth) - $imgwidth<0)
   
$newline=true;
 if(
$newline==true){
   if(!
$firstTime){
     echo 
"</tr>";
     
$firstTime=false;
     }
   echo 
"<tr onmouseover=\"hideData()\" style=\"text-align:center; vertical-align:middle\">";
   
$newline=false;
   }
 if(
$GD_WORKAROUND=="oldGD"){
   
$winfo=getimagesize("$filter_files[$i]");
   
$wwidth=$imgwidth;
   
$wheight=$winfo[1]*($imgwidth/$winfo[0]);
   
//workaround for old PHP version (GD < 1.8), no jpeg abilities 
   
echo "<td class=\"browsetd\" width=\"".strval(100/$imgsperline)."%\"><div style=\"$textStyle\" class=\"tdpic\"><a href=\"$SCRNAME?$GD_WORKAROUND$sep"."slides$sep".$i."\"><img border=\"0\" alt=\"".$filter_files[$i]."\" src=\"".$filter_files[$i]."\" onmouseover=\"showData($i,this)\" width=\"100%\"></a></div></td>";//was: width=\"$wwidth\" height=\"$wheight\"
 
}
 else
   echo 
"<td class=\"browsetd\" width=\"".strval(100/$imgsperline)."%\"><div style=\"$textStyle\" class=\"tdpic\"><a href=\"$SCRNAME?$GD_WORKAROUND$sep"."slides$sep".$i."\"><img class=\"tdpic\" border=\"0\" alt=\"".$filter_files[$i]."\"  src=\"".$SCRNAME."?$GD_WORKAROUND$sep"."image".$sep.$filter_files[$i].$sep.$imgwidth."\" onmouseover=\"showData($i,this)\" width=\"100%\" ></a></div></td>";
}
$fillup=$imgsperline-(sizeof($filter_files)-$offset);
for(
$i=$fillup;$i>0;$i--)
  echo 
"<td class=\"browsetd\" width=\"".strval(100/$imgsperline)."%\"></td>";
echo 
"</tr>\n</table></center></div>
<table><tr><td onmouseover=\"dontHide=true\" onmouseout=\"dontHide=false\"  class=\"currpic\" style=\"border-top-style:none; z-index:99; visibility:hidden; position:absolute\" id=\"infotext\">
</td></tr></table>"
;


echo 
"$aftertext</body>";
echo 
"</html>";
die;