I have an HTML form whose action should be set dynamically through JavaScript. How do I do it?
Here is what I am trying to achieve:
<script type="text/javascript">
function get_action() { // Inside script tags
return form_action;
}
</script>
<form action=get_action()>
...
</form>
This question is related to
javascript
html
forms
Change the action URL of a form:
<form id="myForm" action="">
<button onclick="changeAction()">Try it</button>
</form>
<script>
function changeAction() {
document.getElementById("myForm").action = "url/action_page.php";
}
</script>
Very easy solution with jQuery:
$('#myFormId').attr('action', 'myNewActionTarget.html');
Your form:
<form action=get_action() id="myFormId">
...
</form>
document.forms[0].action="http://..."
...assuming it is the first form on the page.
Plain JavaScript:
document.getElementById('form_id').action; //Will retrieve it
document.getElementById('form_id').action = "script.php"; //Will set it
Using jQuery...
$("#form_id").attr("action"); //Will retrieve it
$("#form_id").attr("action", "/script.php"); //Will set it
Actually, when we want this, we want to change the action depending on which submit button we press.
Here you do not need even assign name
or id
to the form. Just use the form
property of the clicked element:
<form action = "/default/page" >
<input type=submit onclick='this.form.action="/this/page";' value="Save">
<input type=submit onclick='this.form.action="/that/page";' value="Cancel">
</form>
Do as Rabbott says, or if you refuse jQuery:
<script type="text/javascript">
function get_action() { // inside script tags
return form_action;
}
</script>
<form action="" onsubmit="this.action=get_action();">
...
</form>
<script>
function onSelectedOption(sel) {
if ((sel.selectedIndex) == 0) {
document.getElementById("edit").action =
"http://www.example.co.uk/index.php";
document.getElementById("edit").submit();
}
else
{
document.getElementById("edit").action =
"http://www.example.co.uk/different.php";
document.getElementById("edit").submit();
}
}
</script>
<form name="edit" id="edit" action="" method="GET">
<input type="hidden" name="id" value="{ID}" />
</form>
<select name="option" id="option" onchange="onSelectedOption(this);">
<option name="contactBuyer">Edit item</option>
<option name="relist">End listing</option>
</select>
Source: Stackoverflow.com