1 files changed, 17 insertions, 2 deletions
diff --git a/web/web_opts.c b/web/web_opts.c
index 0f37bba..945909f 100644
--- a/web/web_opts.c
+++ b/web/web_opts.c
@@ -3,6 +3,8 @@
 #include "comp.h"
 
 #include <math.h>
+#include <stdio.h>
+#include <string.h>
 
 #include <emscripten/emscripten.h>
 
@@ -11,8 +13,21 @@ int delay_ms = 1000;
 void opts_init()
 {
 	EM_ASM(readOpts());
-	EM_ASM({updateDelay($0)}, delay_ms);
-	EM_ASM({updateStdev($0)}, horizontal_stdev);
+
+	char buf[64];
+	sprintf(buf, "%d", delay_ms);
+	EM_ASM({elemSetValue($0, $1)}, "#delay", buf);
+
+	int len = sprintf(buf, "%4.2f", horizontal_stdev);
+	char *dot = strchr(buf, '.');
+	if (dot) {
+		for (char *ptr = buf + len - 1; ptr >= dot; --ptr) {
+			if (*ptr != '0' && *ptr != '.')
+				break;
+			*ptr = 0;
+		}
+	}
+	EM_ASM({elemSetValue($0, $1)}, "#stdev", buf);
 }
 
 EMSCRIPTEN_KEEPALIVE