diff --git a/gulliver/system/class.g.php b/gulliver/system/class.g.php
index 786fa4560..e68953fe3 100644
--- a/gulliver/system/class.g.php
+++ b/gulliver/system/class.g.php
@@ -2284,35 +2284,49 @@ class G
    */   
   function resizeImage($path, $resWidth, $resHeight, $saveTo=null) 
   {
-    try {
-      list($width, $height) = getimagesize($path);
-      $percentHeight        = $resHeight / $height;
-      $percentWidth         = $resWidth / $width;
-      $percent              = ($percentWidth < $percentHeight) ? $percentWidth : $percentHeight;
-      $resWidth             = $width * $percent;
-      $resHeight            = $height * $percent;
+    $imageInfo = @getimagesize($path);
 
-      // Resample
-      $image_p = imagecreatetruecolor($resWidth, $resHeight);
-      
-      //calculating memory needed for image
-      $imageInfo = GetImageSize($path);
-      $memoryNeeded = Round( ($imageInfo[0] * $imageInfo[1] * $imageInfo['bits'] * $imageInfo['channels'] + Pow(2, 16)) * 1.95) / (1024*1024);        
-      if ( $memoryNeeded < 50 ) $memoryNeeded = 50;
-      ini_set('memory_limit', intval($memoryNeeded) . 'M');
-      if (strcasecmp(substr(strtolower($path),-4),'.jpg')===0) $image = imagecreatefromjpeg($path);
-      if (strcasecmp(substr(strtolower($path),-5),'.jpeg')===0)$image = imagecreatefromjpeg($path);
-      if (strcasecmp(substr(strtolower($path),-4),'.png')===0) $image = imagecreatefrompng($path);
-      if (strcasecmp(substr(strtolower($path),-4),'.gif')===0) $image = imagecreatefromgif($path);
-      imagecopyresampled($image_p, $image, 0, 0, 0, 0, $resWidth, $resHeight, $width, $height);
+    if (!$imageInfo)
+      throw new Exception("Could not get image information");
 
-      // Output
-      imagejpeg($image_p, $saveTo, 100);
-      chmod($saveTo, 0666);
-    }
-    catch (Exception $oException) {
-      throw $oException;
-    }
+    list($width, $height) = $imageInfo;
+    $percentHeight        = $resHeight / $height;
+    $percentWidth         = $resWidth / $width;
+    $percent              = ($percentWidth < $percentHeight) ? $percentWidth : $percentHeight;
+    $resWidth             = $width * $percent;
+    $resHeight            = $height * $percent;
+
+    // Resample
+    $image_p = imagecreatetruecolor($resWidth, $resHeight);
+    imagealphablending($image_p, false);
+    imagesavealpha($image_p, true);
+
+    $background = imagecolorallocate($image_p, 0, 0, 0);
+    ImageColorTransparent($image_p, $background); // make the new temp image all transparent
+
+    //Assume 3 channels if we can't find that information
+    if (!array_key_exists("channels", $imageInfo))
+      $imageInfo["channels"] = 3;
+    $memoryNeeded = Round( ($imageInfo[0] * $imageInfo[1] * $imageInfo['bits'] * $imageInfo['channels'] + Pow(2, 16)) * 1.95) / (1024*1024);
+    if ( $memoryNeeded < 80 ) $memoryNeeded = 80;
+    ini_set('memory_limit', intval($memoryNeeded) . 'M');
+
+    $functions = array(
+      IMAGETYPE_GIF => array('imagecreatefromgif', 'imagegif'),
+      IMAGETYPE_JPEG => array('imagecreatefromjpeg', 'imagejpeg'),
+      IMAGETYPE_PNG => array('imagecreatefrompng', 'imagepng'),
+    );
+
+    if (!array_key_exists($imageInfo[2], $functions))
+      throw new Exception("Image format not supported");
+
+    list($inputFn, $outputFn) = $functions[$imageInfo[2]];
+
+    $image = $inputFn($path);
+    imagecopyresampled($image_p, $image, 0, 0, 0, 0, $resWidth, $resHeight, $width, $height);
+    $outputFn($image_p, $saveTo);
+
+    chmod($saveTo, 0666);
   }
 
   /**