experimental code for hotkey zone highlighting

functions.js

@@ -2,6 +2,8 @@ var hotkeys_enabled = true;
 var debug_mode_enabled = false;
 var xmlhttp_rpc = Ajax.getTransport();
 
+var hotkey_zone = 0;
+
 /* add method to remove element from array */
 
 Array.prototype.remove = function(s) {
@@ -229,6 +231,22 @@ function hotkey_handler(e) {
 			keycode = e.which;
 		}
 
+		if (keycode == 48) { // 0
+			return setHotkeyZone(0);
+		}
+
+		if (keycode == 49) { // 1
+			return setHotkeyZone(1);
+		}
+
+		if (keycode == 50) { // 2
+			return setHotkeyZone(2);
+		}
+
+		if (keycode == 51) { // 3
+			return setHotkeyZone(3);
+		}
+
 		if (keycode == 82) { // r
 			return scheduleFeedUpdate(true);
 		}
@@ -1789,4 +1807,59 @@ function displayHelpInfobox(topic_id) {
 	return false;
 }
 
+var _border_color_normal = "#88b0f0";
+var _border_color_highlight = "#72eda8";
+var _border_color_flash = "#f0fff0";
+
+function highlightHotkeyZone(zone) {
+	try {
+		var feeds = document.getElementById("feeds-holder");
+		var headlines = document.getElementById("headlines-frame");
+		var content = document.getElementById("content-frame");
+
+		feeds.style.borderColor = _border_color_normal;
+		headlines.style.borderColor = _border_color_normal;
+		content.style.borderColor = _border_color_normal;
+
+		if (zone == 1) {
+			feeds.style.borderColor = _border_color_highlight;
+
+			new Effect.Highlight(feeds, {duration: 0.5, startcolor: 
+				_border_color_flash,
+				queue: { position:'end', scope: 'EFCHL-Q', limit: 1 } } );
+		}
+
+		if (zone == 2) {
+			headlines.style.borderColor = _border_color_highlight;
+
+			new Effect.Highlight(headlines, {duration: 0.5, startcolor: 
+				_border_color_flash,
+				queue: { position:'end', scope: 'EFCHL-Q', limit: 1 } } );
+		}
+
+		if (zone == 3 && content) {			
+			content.style.borderColor = _border_color_highlight;
+
+			new Effect.Highlight(content, {duration: 0.5, startcolor: 
+				_border_color_flash,
+				queue: { position:'end', scope: 'EFCHL-Q', limit: 1 } } );
+		}
+
+	} catch (e) {
+		exception_error("highlightHotkeyZone", e);
+	}
+}
+
+
+function setHotkeyZone(zone) {
+	try {
+		hotkey_zone = zone;
+
+		highlightHotkeyZone(zone);
+
+
+	} catch (e) {
+		exception_error("setHotkeyZone", e);
+	}
+}