diff --git a/conf/conf.php b/conf/conf.php
index 801c3e6..67f380a 100755
--- a/conf/conf.php
+++ b/conf/conf.php
@@ -6,6 +6,9 @@
 define('MAX_WORDS', 4);
 define('MAX_ZAPS', 9);
 
+define('ZAP_DEFAULT_WIDTH', 1067);
+define('ZAP_DEFAULT_HEIGHT', 600);
+
 define('ZAP_CURL_TIMEOUT', 12);
 define('ZAP_IMG_TYPE', 'jpg');
 define('ZAP_CANVAS_NAME', 'collage');
diff --git a/lib/ImgIOTools.class.php b/lib/ImgIOTools.class.php
index a41127f..724d091 100755
--- a/lib/ImgIOTools.class.php
+++ b/lib/ImgIOTools.class.php
@@ -3,9 +3,6 @@
  * Image Input Output Tools
  */
 class ImgIOTools {
-	public static $maxScreenWidth = 1067; //screen dimensions
-
-	public static $maxScreenHeight = 600;
 
 	/**
 	 * Flushes image to screen
@@ -13,9 +10,9 @@ class ImgIOTools {
 	 * @return void
 	 */
 	public static function onScreen(Imagick $img) {
-		$img->scaleImage(self::$maxScreenWidth, self::$maxScreenHeight, true);
+		$img->scaleImage(ZAP_DEFAULT_WIDTH, ZAP_DEFAULT_HEIGHT, true);
 
-		//$img = self::scaleByLength($img, $this->maxScreenWidth, $this->maxScreenHeight);
+		//$img = self::scaleByLength($img, ZAP_DEFAULT_WIDTH, ZAP_DEFAULT_HEIGHT);
 		header('Content-type: image/' . ZAP_IMG_TYPE);
 		echo $img->getImageBlob();
      }
@@ -46,5 +43,4 @@ class ImgIOTools {
 		$path = $folder . $filename . '.' . ZAP_IMG_TYPE;
 		return $img->writeImage($path);
 	}
-}
-?>
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/lib/ImgTools.class.php b/lib/ImgTools.class.php
index e743235..2cd68b0 100755
--- a/lib/ImgTools.class.php
+++ b/lib/ImgTools.class.php
@@ -3,10 +3,6 @@
  * Library of tool functions to manipulate an image
  */
 class ImgTools {
-	public static $maxScreenWidth = 1067; //screen dimensions
-
-	public static $maxScreenHeight = 600;
-
 	public static $minFuzzFactor = 0.08; //minimal factor for $fuzz
 
 	public static $maxFuzzFactor = 0.64; //maximal factor for $fuzz
@@ -161,7 +157,7 @@ class ImgTools {
 	public static function scaleByLength(Imagick $img, $maxW, $maxH) {
     	$width = $img->getImageWidth();
 		$height = $img->getImageHeight();
-		if(($width <= self::$maxScreenWidth) && ($height <= self::$maxScreenHeight)) {
+		if(($width <= ZAP_DEFAULT_WIDTH) && ($height <= ZAP_DEFAULT_HEIGHT)) {
 			return $img;
 		} else {
 	         if ($width >= $height) { //horizontal image
diff --git a/tpl/index.tpl b/tpl/index.tpl
index 249b112..68354e2 100755
--- a/tpl/index.tpl
+++ b/tpl/index.tpl
@@ -32,10 +32,10 @@
 				</select>
 			</div>
 			<div class="inp">
-				width <input type="text" name="width" id="width" size="5" maxlength="4" value="1067"> px
+				width <input type="text" name="width" id="width" size="5" maxlength="4" value="<?= ZAP_DEFAULT_WIDTH ?>"> px
 			</div>
 			<div class="inp">
-				height <input type="text" name="height" id="height" size="5" maxlength="4" value="600"> px
+				height <input type="text" name="height" id="height" size="5" maxlength="4" value="<?= ZAP_DEFAULT_HEIGHT ?>"> px
 			</div>
 			<div class="inp">
 				<input type="button" class="btn" onclick="form1Submit()" value="Go &amp; Generate Some Zaps">