diff --git a/lib/Monitorix.pm b/lib/Monitorix.pm
index c751c98..aef3b2a 100644
--- a/lib/Monitorix.pm
+++ b/lib/Monitorix.pm
@@ -93,15 +93,15 @@ sub picz_js_a_element {
 
 	my $zoom = (uc($params{config}->{image_format}) eq "SVG") ? (4 / 3) : 1;
 
-	my $width = ceil($params{width} * $zoom);
-	my $height = ceil($params{height} * $zoom + 0.5);
+	my $js = sprintf "javascript:void(window.open('%s/%s%s','','width=%d,height=%d,scrollbars=0,resizable=0'))",
+					  $params{config}->{url},
+					  $params{config}->{imgs_dir},
+					  $params{IMGz},
+					  ceil($params{width} * $zoom),
+					  ceil($params{height} * $zoom + 0.5);
 
-	return sprintf '<a href="javascript:void(window.open(\'%s/%s%s\',\'\',\'width=%d,height=%d,scrollbars=0,resizable=0\'))">%s</a>',
-					 $params{config}->{url},
-					 $params{config}->{imgs_dir},
-					 $params{IMGz},
-					 $width,
-					 $height,
+	return sprintf '<a href="%s">%s</a>',
+					 $js,
 					 img_element(%params);
 }