Change button disabled through function

[IreneLing]

Hi all , here is a question about a disabled button .

 

If I have a button:

<input id='submit' type='submit' disabled='disabled' value='submit'>

 

Is it possible to change the "disabled=true" through php function ? such as

 

function change_button(){

echo "<script language=\"javascript\">";

echo "document.getElementById('submit').disabled=true;"; 

echo "</script>";

}

 

I tried it , not working...is this function possible or have I make any mistake ?

Thanks for every reply .

[requinix]

Not through PHP. You can only change it through JavaScript.

[IreneLing]

Thanks for your reply , I got it now , and I just found a better way to do it , really thanks .