--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mgallery.js	Wed Sep 06 16:46:09 2017 +0300
@@ -0,0 +1,130 @@
+//
+// Yet Another Image Gallery
+// -- Main Javascript utility functions file
+// Programmed and designed by Matti 'ccr' Hamalainen <ccr@tnsp.org>
+// (C) Copyright 2015-2017 Tecnic Software productions (TNSP)
+//
+
+
+function mgalAddEvent(evobj, evtype, evcallback)
+{
+  if (evobj == null || typeof(evobj) == 'undefined')
+    return;
+
+  if (evobj.addEventListener)
+    evobj.addEventListener(evtype, evcallback, false);
+  else
+  if (evobj.attachEvent)
+    evobj.attachEvent("on" + evtype, evcallback);
+  else
+    evobj["on"+evtype] = evcallback;
+};
+
+
+function mgalNavigateTo(url)
+{
+  if (url != "")
+    window.location = url;
+}
+
+
+function mgalProcessKeyPress(ev)
+{
+  ev = ev || window.event;
+  var key = ev.keyCode ? ev.keyCode : ev.which;
+  switch (key)
+  {
+    case 37:
+    case 65:
+    case 52:
+      // left
+      mgalNavigateTo(mgalPrevURL);
+      break;
+
+    case 39:
+    case 68:
+    case 54:
+      // right
+      mgalNavigateTo(mgalNextURL);
+      break;
+
+    case 38:
+    case 56:
+      // up
+      mgalNavigateTo(mgalUpURL);
+      break;
+
+    default:
+      return true;
+  }
+
+  ev.preventDefault();
+  return false;
+}
+
+
+function mgalGetWindowSize()
+{
+  var winW = 0, winH = 0;
+  if (typeof(window.innerWidth) == 'number')
+  {
+    // Non-MSIE
+    winW = window.innerWidth;
+    winH = window.innerHeight;
+  }
+  else
+  if (document.documentElement && (document.documentElement.clientWidth || document.documentElement.clientHeight))
+  {
+    // MSIE 6+ in 'standards compliant mode'
+    winW = document.documentElement.clientWidth;
+    winH = document.documentElement.clientHeight;
+  }
+  else
+  if (document.body && (document.body.clientWidth || document.body.clientHeight))
+  {
+    // MSIE 4 compatible
+    winW = document.body.clientWidth;
+    winH = document.body.clientHeight;
+  }
+
+  return [winW, winH];
+}
+
+
+function mgalAdjustImageDo()
+{
+  var eimg = document.getElementById("imageImage");
+  var win = mgalGetWindowSize();
+  var madj = 0.92;
+  if (eimg)
+  {
+    if (eimg.width > eimg.height)
+    {
+      eimg.style.width = "100%";
+      eimg.style.height = "auto";
+      if (eimg.height > win[1] * madj)
+      {
+        eimg.style.width = "auto";
+        eimg.style.height = (win[1] * madj)+"px";
+      }
+    }
+    else
+    {
+      eimg.style.width = "auto";
+      if (eimg.height > win[1] * madj)
+        eimg.style.height = (win[1] * madj)+"px";
+      else
+        eimg.style.height = "100%";
+    }
+  }
+  adjustPID = -1;
+}
+
+
+function mgalAdjustImage()
+{
+  if (adjustPID == -1)
+    adjustPID = setTimeout(mgalAdjustImageDo, 50);
+}
+
+