怎么修改fckeditor上传图片的宽和高

如何修改fckeditor上传图片的宽和高
在使用fckeditor的上传图片的功能时，上传的图片会以原来的大小存放，现在我想在上传的图片存放前改变其宽和高，变成指定大小的形式，请问在那个文件中的那个方法前去操作。 多谢指点，一经验证成功，马上结贴给分！

[解决办法]
图片缩放类

PHP code

<?class Cimgtoico{ var $srcimg; var $icoName; var $icoWidth; var $icoHeight; var $icoPath; var $srcPath; var $icoType; var $img;function Cimgtoico($srcimg='',$icoPath,$icoWidth,$icoHeight){    $this->srcimg=$srcimg;    $this->srcPath=$srcPath;    $this->icoPath=$icoPath;    $this->icoWidth=$icoWidth;    $this->Height=$icoHeight;}function CreateIco(){ if($this->srcimg!="")    {    $img_info=getimagesize($this->srcimg);    $filen="ico".date(YmdHis);        switch ($img_info[2]) {    case 1:    $this->icoType="gif";        $this->img = imagecreatefromgif($this->srcimg);     break;    case 2:    $this->icoType= "jpg";        $this->img=imagecreatefromjpeg($this->srcimg);     break;    case 3:    $this->icoType= "png";    $this->img= imagecreatefrompng($this->srcimg);     break;    }       $this->ResizeImage($this->icoWidth,$this->Height,$this->icoPath.$filen);     ImageDestroy ($this->img);    $this->icoName=$filen.".jpg";     return $this->icoName;   }else   {     return "";   }   }function ResizeImage($maxwidth,$maxheight,$name){         $width = imagesx($this->img);         $height =imagesy($this->img);         if(($maxwidth && $width > $maxwidth) || ($maxheight && $height > $maxheight)){         if($maxwidth && $width > $maxwidth){             $widthratio = $maxwidth/$width;             $RESIZEWIDTH=true;         }         if($maxheight && $height > $maxheight){             $heightratio = $maxheight/$height;             $RESIZEHEIGHT=true;         }         if($RESIZEWIDTH && $RESIZEHEIGHT)         {             if($widthratio < $heightratio)              {                       $ratio = $widthratio;               }          else{                $ratio = $heightratio;               }         }      elseif($RESIZEWIDTH)       {          $ratio = $widthratio;        }elseif($RESIZEHEIGHT)       {         $ratio = $heightratio;        }        $newwidth = $width * $ratio;       $newheight = $height * $ratio;       if(function_exists("imagecopyresampled"))      {        $newim = imagecreatetruecolor($newwidth, $newheight);       imagecopyresampled($newim, $this->img, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);       }else{        $newim = imagecreate($newwidth, $newheight);        imagecopyresized($newim, $this->img, 0, 0, 0, 0, $newwidth, $newheight, $width, $height);       }        ImageJpeg ($newim,$name.".jpg");        ImageDestroy ($newim);     }else{      ImageJpeg ($this->img,$name.".jpg");      ImageDestroy ($newim);    }  } }/*$ico=new Cimgtoico("./images/1Yuan.jpg","./images/",100,100);$ico->CreateIco();*/?>