how to enable radio button in onchange of a drop down

[ajaymohank]

Hello Friends....... in my project i am having a dropdown and based on the values selected from the dropdown, i have to enable 2 radio button. in the on change function of drop down i have written the code. but radio button is not getting enabled, it just blinks and get disabled. this is the code... radio button is disabled by default.[php]<select name="tak" class="style21" onChange="tlkdisp(document.form1)">function tlkdisp(Object)
{
var index=Object.tak.selectedIndex;
var value=Object.tak.options[index].value;
if(Object.tak.options[index].value >0 )
{
document.form1.radiobutton[0].disabled=false;
document.form1.radiobutton[1].disabled=false;
document.form1.radiobutton1[0].disabled=false;
document.form1.radiobutton1[1].disabled=false;
}
document.form1.action="Vr.php?tak="+value;
document.form1.submit();
return false;
}[/php]
thanks..............

[TheServant]

Looks like javascript to me? And it sounds like something you would need javascript for anyway. PHP cannot do this alone, so if you don't want to use javascript you will need AJAX. A moderator should move this to the javascript forum soon.

[ronverdonk]

warning:

Please enclose your posted code in [code] tags (See How to Ask a Question).

This makes it easier for our Experts to read and understand it. Failing to do so creates extra work for the moderators, thus wasting resources, otherwise available to answer the members' questions.

Please use [code] tags in future.

MODERATOR

[ronverdonk]

What has this got to do with PHP??

I'll move this to the JavaScript forum.

moderator

[acoder]

Hello Friends....... in my project i am having a dropdown and based on the values selected from the dropdown, i have to enable 2 radio button. in the on change function of drop down i have written the code. but radio button is not getting enabled, it just blinks and get disabled. this is the code... radio button is disabled by default.

Show the HTML code. Do you get any errors?

[ajaymohank]

Hello friends..... is it possible to enable radio button in the "onchange" function of an dropdown list using java script in php.

function tlkdisp(Object)
{
var index=Object.tak.selectedIndex;
var value=Object.tak.options[index].value;
document.form1.radiobutton[0].disabled=false;
document.form1.radiobutton[1].disabled=false;
document.form1.action="Vresurvey.php?tak="+value;
document.form1.submit();

return false;
}

<select name="tak" class="style21" style="font-family:MLB-TTRevathi" onChange="tlkdisp(document.form1)"

this is my code... but i am not able to enable the radio button, it just blinks when i select the dropdownlist..

thanks.

[Markus]

Hello friends..... is it possible to enable radio button in the "onchange" function of an dropdown list using java script in php.

function tlkdisp(Object)
{
var index=Object.tak.selectedIndex;
var value=Object.tak.options[index].value;
document.form1.radiobutton[0].disabled=false;
document.form1.radiobutton[1].disabled=false;
document.form1.action="Vresurvey.php?tak="+value;
document.form1.submit();

return false;
}

<select name="tak" class="style21" style="font-family:MLB-TTRevathi" onChange="tlkdisp(document.form1)"

this is my code... but i am not able to enable the radio button, it just blinks when i select the dropdownlist..

thanks.

This has nothing to do with php.

Regards

[gearoid]

Hello friends..... is it possible to enable radio button in the "onchange" function of an dropdown list using java script in php.

function tlkdisp(Object)
{
var index=Object.tak.selectedIndex;
var value=Object.tak.options[index].value;
document.form1.radiobutton[0].disabled=false;
document.form1.radiobutton[1].disabled=false;
document.form1.action="Vresurvey.php?tak="+value;
document.form1.submit();

return false;
}

<select name="tak" class="style21" style="font-family:MLB-TTRevathi" onChange="tlkdisp(document.form1)"

this is my code... but i am not able to enable the radio button, it just blinks when i select the dropdownlist..

thanks.

I'd recommend looking for an AJAX solution to this - shouldn't be terribly difficult!

[Markus]

I'd recommend looking for an AJAX solution to this - shouldn't be terribly difficult!

Pointless using ajax when there's a pure (and incredibly basic) javascript solution. Using ajax would take up unecessary server resources.

Ask in the JS forum

[ajaymohank]

Hello friends..... is it possible to enable radio button in the "onchange" function of an dropdown list using java script in php.

function tlkdisp(Object)
{
var index=Object.tak.selectedIndex;
var value=Object.tak.options[index].value;
document.form1.radiobutton[0].disabled=false;
document.form1.radiobutton[1].disabled=false;
document.form1.action="Vresurvey.php?tak="+value;
document.form1.submit();
 
return false;
}

<select name="tak" class="style21" style="font-family:MLB-TTRevathi" onChange="tlkdisp(document.form1)"

this is my code... but i am not able to enable the radio button, it just blinks when i select the dropdownlist..

thanks.

[acoder]

Merged multiple threads. Do not double/triple post.

Please enclose your posted code in [code] tags (See How to Ask a Question).

This makes it easier for our Experts to read and understand it. Failing to do so creates extra work for the moderators, thus wasting resources, otherwise available to answer the members' questions.

Please use [code] tags in future.

Moderator.

[acoder]

function tlkdisp(Object)
{
var index=Object.tak.selectedIndex;
var value=Object.tak.options[index].value;
document.form1.radiobutton[0].disabled=false;
document.form1.radiobutton[1].disabled=false;
document.form1.action="Vresurvey.php?tak="+value;
document.form1.submit();
 
return false;
}

Replace lines 5-6 with:

var radios = document.form1.radiobutton;
for (i = 0; i < radios.length; i++) {
  radios[i].disabled=false;
}

Don't use Object as an argument name- it has special meaning in JavaScript, use something like obj instead.