# HG changeset patch
# User robcast
# Date 1334335307 -7200
# Node ID 788c757d7f706aadd88d6e8ad9150185ebc82624
# Parent  c1df386f2464a7dae3df214690fa4056b1acee54
made contrast slider perview look like contrast action.

diff -r c1df386f2464 -r 788c757d7f70 webapp/src/main/webapp/jquery/jquery.digilib.sliders.js
--- a/webapp/src/main/webapp/jquery/jquery.digilib.sliders.js	Fri Apr 13 18:16:59 2012 +0200
+++ b/webapp/src/main/webapp/jquery/jquery.digilib.sliders.js	Fri Apr 13 18:41:47 2012 +0200
@@ -126,7 +126,8 @@
             var $td = $ind.find('table.'+cls+'indicator td');
             var setBgColor = function (index) {
                 var val = index * 32;
-                var grey = Math.min(Math.max(Math.round(Math.pow(2, cont) * val), 0), 255);
+                var m = Math.pow(2, cont);
+                var grey = Math.min(Math.max(Math.round(m * val + (127 - 127 * m)), 0), 255);
                 $(this).css('background-color', 'rgb('+grey+','+grey+','+grey+')');
                 };
             $td.each(setBgColor);