---
title: "Kontrollera checkbox"
type: "forum-thread"
url: "https://www.webforum.nu/amne/javascript/100794-kontrollera-checkbox"
topic: "JavaScript"
topic_url: "https://www.webforum.nu/amne/javascript"
author: "KarlTomas"
published: "2004-04-02T09:00:08.000Z"
updated: "2004-04-02T15:00:33.000Z"
replies: 2
views: 525
page: 1
pages: 1
language: "sv-SE"
site: "webForum — webforum.nu"
rights: "Upphovsrätten till varje inlägg tillhör dess författare."
attribution: "Citera som: webForum, https://www.webforum.nu/amne/javascript/100794-kontrollera-checkbox"
---

# Kontrollera checkbox

## #1 — KarlTomas, 2004-04-02T09:00Z

Hej, har hittat ett kontroll-script för formulär, men det funkar inte på mina checkboxar, vilket jag naturligtvis vill. Hur kan man ordna det? (övriga fält kontrolleras på rätt sätt).

```
<script language="JavaScript" type="text/javascript">
<!--
function checkform ( form )
{
  // ** Email Validation **
  if (form.Rens_Ja.value == "") {
    alert( "Du måste godkänna." );
    form.Rens_Ja.focus();
    return false ;
  }
  
  
  // ** Name Validation **
  if (form.Namn.value == "") {
    alert( "Du måste ange ditt för- och efternamn." );
    form.Namn.focus();
    return false ;
  }  
  
    // ** Name Validation **
  if (form.Adress.value == "") {
    alert( "Du måste ange din adress." );
    form.Adress.focus();
    return false ;
  }  

  // ** Name Validation **
  if (form.Tel_Dag.value == "") {
    alert( "Du måste ange ditt telefonnummer." );
    form.Tel_Dag.focus();
    return false ;
  }  

  // ** Name Validation **
  if (form.Epost.value == "") {
    alert( "Du måste ange din e-postadress." );
    form.Epost.focus();
    return false ;
  }  
  
    // ** Name Validation **
  if (form.Postadress.value == "") {
    alert( "Du måste ange din postadress." );
    form.Postadress.focus();
    return false ;
  }  
  
  // ** END **
  return true ;
}
//-->
</script>

</head>

..........

<FORM ACTION="/cgi-bin/formmailer" METHOD="POST" onsubmit="return checkform(this);">
<INPUT TYPE="hidden" NAME="to" VALUE="info@haningesot.a.se">
<input type="hidden" name="successurl" value="/tack.html">

<input type="checkbox" name="Rens_Ja" value="ON"  style="border-color: #0099CC; border-style: solid; border-width: 1px;">&nbsp; Ja tack<br>

<input type="checkbox" name="Vent_Koll_Ja" value="ON"  style="border-color: #0099CC; border-style: solid; border-width: 1px;">&nbsp; Ja tack<br>

<input type="text" size="20" name="Namn" style="border-color: #0099CC; border-style: solid; border-width: 1px;"></td>
 
<input type="text" size="20" name="Adress" style="border-color: #0099CC; border-style: solid; border-width: 1px;"></td>
 
<input type="text" size="20" name="Postadress" style="border-color: #0099CC; border-style: solid; border-width: 1px;"></td>
 
<input type="text" size="20" name="Fast_Bet" style="border-color: #0099CC; border-style: solid; border-width: 1px;"></td>

<input type="text" size="20" name="Tel_Dag" style="border-color: #0099CC; border-style: solid; border-width: 1px;"></td>

<input type="text" size="20" name="Epost" style="border-color: #0099CC; border-style: solid; border-width: 1px;"></td>

<input type="submit" value="Jag beställer" style="float: left"></td>

</form>
```

Permalänk: https://www.webforum.nu/p/100794

## #2 — Peter S, 2004-04-02T13:26Z

```
if (!form.Rens_Ja.checked) {
    alert( "Du måste godkänna." );
    return false ;
}
```

 :)

Permalänk: https://www.webforum.nu/p/1313437

## #3 — KarlTomas, 2004-04-02T15:00Z

Tack :-)

Permalänk: https://www.webforum.nu/p/1313474

---

Tråden på webben: https://www.webforum.nu/amne/javascript/100794-kontrollera-checkbox