@@ 1,7 1,7 @@ 
 package formguard
 
 import (
-	"errors"
+	"fmt"
 	"html/template"
 	"strings"
 

          
@@ 32,7 32,7 @@ func (f *Form) Validate(c echo.Context) 
 	}
 
 	if f.AntiSpam < FormGuardMinValue {
-		return errors.New("This operation is forbidden")
+		return validate.InputErrors{"_global_": []string{"This operation is forbbiden."}}
 	}
 
 	return nil

          
@@ 41,9 41,30 @@ func (f *Form) Validate(c echo.Context) 
 // ScriptJS ...
 func ScriptJS(ids ...string) template.HTML {
 	script := `<script>
-	let ids = '<idsList>';
+	var update_field_value = function(field_id) {
+		if (document.getElementById(field_id)) {
+		  a = document.getElementById(field_id);
+		  if (isNaN(a.value) == true) {
+			a.value = 0;
+		  } else {
+			a.value = parseInt(a.value) + 1;
+		  }
+		}
+	}
+	let field_ids = [<idsList>];
+    var anti_spam = function() {
+		for (var i=0, l=field_ids.length; i<l; i++) {
+			update_field_value(field_ids[i]);
+		}
+		setTimeout("anti_spam()", 1000);
+    }
+    anti_spam();
 	</script>`
-	script = strings.Replace(script, "<idsList>", strings.Join(ids, ","), 1)
+	var idsList string
+	for _, id := range ids {
+		idsList += fmt.Sprintf("'%s',", id)
+	}
+	script = strings.Replace(script, "<idsList>", idsList, 1)
 	return template.HTML(script)
 }