i am showing you in javascript.
First make your html file look like this
<div class="rButtons">
<input type="radio" name="numbers" value="10" onclick="uncheck();" />10
<input type="radio" name="numbers" value="20" onclick="uncheck();" />20
<input type="radio" name="numbers" value="other" onclick="check(this);"/>other
<input type="text" id="other_field" name="other_field" onblur="checktext(this);"/>
</div>
In the second step write this css code to initially set the text field invisible.
<style type="text/css">
#other_field
{
visibility: hidden;
}
</style>
Finally use this javascript code to validate the user’s behaviour
<script type="text/javascript">
function uncheck()
{
document.getElementById('other_field').style.visibility = "hidden";
}
function check(inputField)
{
if(inputField.checked)
{
document.getElementById('other_field').style.visibility = "visible";
}
}
function checktext(inputField)
{
if(isNaN(inputField.value))
{
alert('only numbers are allowed..');
return false;
}
else if( (inputField.value % 10 ) != 0)
{
alert('only multiples of 10..');
return false;
}
else
{
return true;
}
}
</script>
The first function detects if user clicked the “other” radio button and displays the hidden
text filed..
The second function validates the input field as per your requirements…
6
solved I want to add text field in html dynamically using jquery or javascript to a particular button [closed]